Showing posts with label Florida Landscape. Show all posts
Showing posts with label Florida Landscape. Show all posts

Sunday, December 26, 2021

Sea Lavender

The first time I saw sea lavender, Argusia gnaphalodes, was somewhere in the Caribbean, possibly Grand Cayman, or Aruba, over 30 years ago. The beauty of its green-gray whorls of silky soft leaves so impressed me that I pinched off a tiny piece and showed it to the agricultural customs agent at Miami International Airport. He identified it for me, and explained that it once had been common along Florida east coast beaches, but was becoming increasingly rare due to development. (Environmental laws give Florida's wetland plants some protection. But some of the most rare and vulnerable native species require high and dry land, precisely the sites most coveted by developers, and often come out the losers).

Argusia gnaphalodes - Tip of Stem


After moving back to Florida in 1990, I began looking for the plant - in vain. So far my sources disagree on whether the plant occcurs naturally on the state's sw coast. Next year I will be stalking local state park and public beaches in search of it. Otherwise, it is native to Florida's east coast north to Brevard County, the Keys, West Indies, Yucatan Peninsula, and the Caribbean coast of central America and Venezuela. 

 Finally, about 2 years ago, I discovered a row of scraggly and generally unimpressive pots of Argusia at the All Native Plant Nursery in Fort Myers*, and pounced. Over the last 2 years it has become a handsome, fully-leafed out shrub about 3-and-a-half feet tall and wide. Barring calamity, it will keep spreading, though perhaps at a slower pace.



Argusia gnaphalodes  - Front View


I planted it in March, several months before the advent of the rainy season. I watered it well for the first week or so, until it seemed to be doing fine on its own, and since then I have neglected it completely, even though it is growing in one of the most difficult areas of our yard - a south-westerly slope of pure sand and brutal daylong sunshine. The summer rains no doubt were crucial to its establishment. 

In fact, gardeners living farther inland, where drainage is not so severe, and salt-laden wind not so common, might have trouble cultivating sea lavender, because it cannot take saturated or highly organic soils. It might also be subject to mildews and molds further inland, where there is less wind - speculation on my part, but possible.

(I have found transplanting native plants during the fall risky. I don't think the plants are programmed to grow in the absence of sustained rain, and stay in a semi-dormant state either until they die or the summer returns. No amount of watering seems to compensate for regular, saturating showers).

Like many plants in the Borage Family, Argusia gnaphalodes is extremely hairy everywhere except the petals and fruits. A dense covering of flattened hairs protects the succulent leaves from dehydration, too much sun and salt. It also gives them the silky softness of a puppy's ear. The leaves reflect silver in bright light, so much so that it's easy to overexpose photographs. In lower light, the plant can appear quite blue. 



Older Flowers - Low Light

Arg-The Latin root of the genus name, Argusia, refers to bright or silver light. The species name derives from a superficial resemblance to a genus of weedy winter annuals in the Aster Family, Gnaphalium.  

The leaves, flat, slightly succulent, and a little spatula-shaped, alternate around the stem, and terminate in a dense whorl. They are about 3-4 inches long and one-quarter inch wide. As the stem elongates, lower leaves die, but don't fall off immediately. Eventually the bottom third of the plant will show these bare stems. The habit may not be to everybody's taste, but I think it makes the plant more interesting. Pendant stems can root, which makes Argusia an important dune-stabilizing plant. 



Backside of Plant - One Stem Starting to Droop

The flowers are formed in a tightly wound cyme, which straightens as the blooms mature. 5 petals, somewhat crinkled, are united at the base. Young flowers are white, with the centers turning pink-maroon as they age. They are said to be mildly fragrant, but so far I haven't been able to catch that. 



Young Flowers


Fruits start out yellow-green, and turn brown or black as they ripen. I haven't seen any ripe fruits yet, so I suspect something eats them before I notice,




Immature Fruits


One of the main reasons this gorgeous plant isn't grown more is that basically nobody knows about it, which is a shame, because for coastal landscapes, it's unbeatable. 



See my blog post, All Native Plant Nursery, April 9, 2020.

Saturday, August 21, 2021

August in the Garden

 I've spent most of my outside hours pulling things out of the yard lately, when the weather allows it.  It's gotten horribly overgrown with lots of  rain and neglect. I'm not the earliest of risers, and the day quickly heats up. The heat and humidity are such that it's easy to flirt with heat exhaustion doing "just one more thing." Some days the relative humidity is just about as high as the temperature. This is summer in southwest Florida, and even though I get uncomfortable and worry about hurricanes, it's my favorite season.

 

I spend a lot of time drinking coffee and staring at a Spanish stopper  through the dining room window. This tree/shrub is unassuming almost to a fault, and since it has a short blooming time, it's easy to miss its "glory days" altogether. But because of my coffee habit, I usually know what's going on with it.



Spanish Stopper, Eugenia foetida



Even the most modest natural things, living or not, can possess an element of striking beauty that is visible only to the passer-by who chances to pause and look. Spanish stopper is a typical wallflower, present, but not noticed. It has rather narrow, vertical habit, so is good for small spaces and hedges. Despite its species name, it does not stink. 

Spanish stopper has its moments of glory when clusters of white flowers clothe the branches. The petals are shell-like and delicate, and the flower itself is adorned with numerous stamens. They are intensely beautiful, even though they have to be observed closely, even with a handlens, to be seen clearly. They make the shrub look like it has been dusted with snowflakes. The flowers don't last very long, especially if it rains, but they are superb while they last. 

One reason our yard is such a mess is that I tend to leave plants that seem "interesting" to me for one reason or other, and a lot of them turn out to be weeds. West Indian pink root, Spigelia anthelmia, isn't the most rampant, and I'm not sure I'd even call it a pest. It's not quite showy enough, even for my taste, to merit cultivation, yet I'm loathe to pull all of it out. The deeply veined leaves are almost sculptural, the tiny flowers attractive, and the general form graceful.

 Dried extract of leaves, roots and stems is available on the Web for homeopathic treatments of nervous disorders and headaches. All parts of the plant are toxic, though. But then again, so are many drugs. It has been used as well to treat worms - hence the species name "anthelmia." As far as I've looked, none of the plants in my yard have had pink roots, not even in cross-section.




Spigelia anthelmia



I have several vines, both planted and uninvited (morning glory) on the fence between us and one set of neighbors. I trim them when they tumble over into the neighbors' space too much. I try to keep the worst of my horticultural untidiness confined to our yard. 


Among the "casualties" of my  pruning were numerous sprays of coral honeysuckle, Lonicera sempervirens.  Native to much of the United States and Mexico, it isn't vouchered for Collier County, but it grows well here nonetheless.  It slows down periodically, but I don't think it every ceases flowering completely. It's a great favorite with hummingbirds and some butterflies. It's on the side of the yard, though, so I don't often see it or the visitors, which is a pity. In this sketch I agonized less about getting the trumpet shaped flowers in correct perspective, and just went for the energy.



Coral Honeysuckle, Sketchbook Pages




Finally, with all the rain we've been having, everything is very green and lush. A few days ago we had the largest flock of white ibis we've seen for a long time grazing in the vacant lots across the canal from us. They will forage unperturbed even in a fairly heavy rain. They've adapted well to the suburban landscape. I don't know how many get poisoned by lawn fertilizers and pesticides, but as long as they stick to the vacant lots they probably are safe. Ibis are common along the beach, too. I don't know whether some prefer salt and some fresh, or whether they use both here. Inland, they would have only freshwater prey, obviously.  Old-time Floridians, like my father, call(ed) them "curlews." There were still a few immature (brown) birds mixed with the flock.




Ibis


This was the quickest of sketches - just an impression of  the birds as they grazed and squabbled. They were gone a few minutes later.
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I have a longer post about the Spanish Stopper:

I also have a longer post about Spigelia Anthelmia:




Wednesday, July 14, 2021

Peeling Bark - An Attractive Feature of Simpson's Stopper

Peeling bark is just one of the many charms of the  Florida native plant, Simpson's Stopper (Myrcianthes fragrans). The specimen in our yard, which I have "limbed up" and trained into a multi-trunked large shrub, is shedding its bark now. It doesn't happen all at once, but seems to start at the base of the trunks, and progress upward through the branches. 

Old, papery bark peels back to reveal vividly-colored new surfaces which beg to be touched as well as seen. They are smooth as though sanded, and the hands itch to experience their fullness. The new wood gradually will fade to a pale beige, but for a time will display nuances of siena, gold, and even hints of green. 






The old bark, mottled with dirt and remnants of lichens may be held in place for a time by the scar of a fallen branchlet. It looks riveted in place. 







My photo below shows that my watercolor sketch doesn't exaggerate the colors.






Healthy plants shed their bark for a variety of reasons. It may be to facilitate growth, to get rid of harmful organisms, or even to aid in photosynthesis. Whatever the explanation, it is one more reason to marvel at the variety and beauty of plants.





Smooth, New Wood





Tuesday, April 6, 2021

Signs of Spring

Just a few days ago I heard the familiar lament, "I like Florida, but I really miss the change of seasons." We don't have jonquils and crocus, but  there are plenty of signs heralding the advent of spring in SW Florida. As for color signals, what more do you need than the show put on by flowering trees - deep yellow Tabebuia,cooling lavender Jacaranda, delicate pink masses of flowering almond - just to name a few.  

The trees named above aren't native to Florida, but so much goes on in March in the natural world that I labeled 2 posts "March Madness" in 2017. This year has been a little crazy apart from the garden, and  I have made many more scribbled notes than sketches. I hope to catch up on some of the later spring manifestations.

The return of the swallow-tailed kites is a sure sign that the winter has turned. I spotted my first one of this year in the second week of March. These striking white-and- black-marked raptors demonstrate how little color has to do with real beauty. No matter how many I've seen, a soaring swallow-tailed kite still takes my breath away. Author and artist David Allen Sibley talks of their,"unmistakeable; incredibly graceful, flowing flight."(The Sibley Guide to Birds, p. 111). The birds don't use just their tail feathers for maneuvering, but also can twist their entire lower body to execute their aerial acrobatics.

Swallow-tailed kites nest in tall trees in hardwood forests, and due to development, especially intense timbering and replacement of mixed forests with pine plantations, their range in the U.S. has shrunk drastically. They used to nest as far north as Minnesota. Now they are limited to peninsular Florida, and the coasts of Georgia, South Carolina, Alabama, Mississippi, and eastern Louisiana. They return to South America in the fall. 

They pluck their prey - reptiles, amphibians, insects and small birds from the treetops or catch and eat them in flight. I haven't read that they do so, but I wouldn't be surprised to find that they also rob nests of other species. Perhaps that is calumny, but "Mother Nature" isn't kind, and she doesn't always go by the rules.

Frangipani, Plumeria sp., isn't native to Florida, but it consumes few, if any, resources, and isn't invasive. It is a quintessential "pass-along" plant. I got mine from a sister, who got hers from a friend. All you have to do to grow it is stick a branch into the dirt, water a little, and watch it grow. Once it is established it needs no irrigation or fertilizer. (At least the one in our yard behaves that way). There are many species and varieties, but the only two I see around the neighborhood are a  pink-flowered and a yellow-flowered one. Ours is  yellow-flowered, and fragrant. Frangipani is one of the flowers traditionally used in Hawaiin leis.



Frangipani Flower Cluster




Once the weather is good and dry, frangipanis lose all their leaves, and look completely dead and more than slightly creepy - like some sort of alien life form, which is just waiting to emerge and wreak havoc. 




Dormant Frangipani Branch



I used a variety of colored pencils to capture the gray-green, turgid look of these branchlets, which really do resemble dead fingers. The true color is something in between all my attempts. The large dry markings are leaf scars from previous seasons, and the squiggly maroonish things at the very tip are nascent leaves. New growth literally bursts through the skin. Buds and stems don't magically appear on the branches, but rupture the skin, leaving oozing wounds. 

Last month, bloom stalks capped with numerous flower buds started rising from the branch tips, and now the first flowers have opened. The plant is a member of the Dogbane Family, and all parts, including the white sap, are somewhat poisonous. I haven't found the sap irritating, but I haven't gotten much on my skin, and other people might have a reaction to it.


Emerging Flower Stalk
Maroon Structures are Young Leaves



The Great Southern White and Florida White butterflies reappear in mid-to-late March. Both occur here about the same time, and I'm not quick enough to id them on the fly. When we first moved here in 1994, we would see great swarms of white butterflies, but now we see them singly or maybe in pairs. If you can get close enough to see them, the bright turquoise tips on the antennae are a dead giveaway for the Great Southern White.


White Butterflies:
Great Southern White, Left, and Florida White, Right



The emergence of lubber grasshopper nymphs is also a marker for spring. The nymphs start emerging in great numbers in February. So far they have defoliated one bougainvillea, and demolished the Crinums and Tradescantias. They'll all recover, with the possible exception of the Tradescantia. which really are happier in more northern sections of Florida. There must be many microorganisms that afflict the nymphs, because the number of adults I see later on is a fraction of the immature population. Both nymphs and adults allegedly are toxic to most predators. 

Newly-Emerged Lubber Nymphs



Just like "up north," perennials are forming new basal rosettes and resuming growth. Elephant's foot and rosinweed have made a fine beginning, while blackroot and Pluchea have resprouted directly.  Native grasses like Elliott's Love Grass and Pink Muhley are sending out fresh, colored blades from what clumps of dried foliage from last year. Gaillardias sown by last year's plants are germinating here and there in the yard. I leave them where they don't block a path, and try to transplant others, even though it sets them back. 

March brings persistent drying winds. Our last rain was the second week in February, and given the wind and increasing sunshine I have to water at least twice a week now, whereas during winter even the potted plants don't require a lot of attention. 



Blue-Eyed Grass



Blue-eyed grass made a magnificent display throughout late winter and early spring, but is going to seed now. The tickseed is also beginning to appear somewhat the worse for wear.

It's March Madness in the garden all over again. There is plenty more going on, but I have to stop for now.

Sunday, February 21, 2021

January - Not the Greatest New Year

January came and went, and for once, time seemed to drag. Apart from political and COVID misery, the month opened with gray, chilly weather, powdery mildew, and an episode of red tide. Not a great start for a happy new year. 

 Powdery mildew first appears as white, somewhat circular splotches on the top sides of leaves. It looks a little like they have been sprinkled with flour or talc. Yellowing, browning, and death of the leaf may follow.  Powdery mildew, a true fungus, flourishes with  cool nights combined with high humidity and warm days. This time of year we tend to have heavy dewfall, and even fog. If I were growing vegetables this year, I most likely also would be dealing with downy mildew, a socalled "water mold," which likes the same conditions. 

Since crowding, combined with shade and moisture, makes powdery mildew worse, it showed up mainly on large clumps of dune sunflower, Helianthus debilis growing around  some palms and  large shrubs in the front yard, and on the near-prostrate rosettes of Elliott's aster.

I am letting the Elliott's aster deal with the mildew on its own. The rosettes collect moisture every night and early morning. I probably couldn't get it completely eradicated even with a regular spray schedule, and since I avoid pesticides, I'm not spraying it at all. Since this is a recurring event, I expect the asters to grow out of the problem once the drying winds and sunnier days of March roll in.



Powdery Mildew on Elliott's Aster


I pretty much got rid of the mildew on the dune sunflowers by drastic pruning, even removal of entire clumps.

 Left to itself in a garden situation, dune sunflower forms large, mounding clumps, often with dead, decaying, or whitefly-infested branches hidden underneath. Keeping them nice and somewhat contained requires periodic pruning, even cutting back to the ground. The ones I removed didn't have these problems yet. Salt spray and wind keep the plants smaller in their dune habitat. 

The back yard is subject to pitiless sun most of the day,  so powdery mildew rarely pops up there. It was time to do hard pruning of the sunflowers there anyway, just to tidy things up, and remove dead branches. I like to leave "islands" of it so that what snakes and reptiles we still have can move around with some cover. The great egret in particular is a voracious predator of anoles and skinks, and I once saw a hawk pluck a corn snake from the front yard. 

There are 3 subspecies of Helianthus debilis in Florida. My plants, originally obtained from native plant sales, are predominantly the east coast dune sunflower, Helianthus debilis subsp. debilis. The species hasn't been vouchered in Collier County, but I have seen it growing on the dunes. Since walking on the dunes is a serious no-no because it is so destructive,  I can't say for sure what subspecies they are. The plants in our yard are both mounding and somewhat vining. They root easily at the nodes. The leaves are roughly triangular, and shaped like arrowheads with a large base. They have a sandpapery texture. The petioles are long, and the leaf margins vary from entire to noticeably toothed. The stems range in color from green to maroon, and are also somewhat rough to the touch. The sinuous quality of the stems makes the plant fun to draw. 



Helianthus debilis Stem with Opening Head


Flower heads are an intense yellow. Just before the sun sets, they can take on a slightly luminous quality.  The plants are evergreen here, and bloom all year. Butterflies and moths visit them, though they are not favorite nectar  plants. A variety of bees, wasps, and other small pollinators are more common visitors in our yard. Mourning doves like to shelter under them, and no doubt eat the seeds.



Dune Sunflower Habit


Apart from its eagerness to overrun the entire yard, Helianthus debilis is a great garden plant. Its colorful blooms and  bright foliage enliven the yard. Like Gaillardia, a clump of dune sunflower just cheers up the scene. Its semi-vining stems will cascade prettily over the sides of a large pot. The hidden branches of a large, old clump become infested with whitefly and mealy bugs over time. Otherwise I haven't noticed any insect problems, and no disease troubles other than the seasonal mildew. The plant is extremely drought tolerant. I never water it unless it is in a pot.




Helianthus debilis


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Officials like to say that red tide is a natural phenomenon. They're right - to an extent. These algal blooms can be caused by an upwelling of nutrients from the ocean floor, triggered by large storms, temperature swings, changes in salinity, and so forth. They normally occur here when the weather is warm - from August to November. 

But red tides have become more persistent in the past 5 or so years, exacerbated by humans. The period from the summer of 2016 through the winter of 2019 was particularly disastrous for southern Florida. Heavy rains forced the Army Corps of Engineers to make record-breaking discharages of fresh water from Lake Okeechobee. The fact that the earthen levee around Okeechobee is obsolete and can't stand the pressure of elevated water levels has been known for decades, but the political will to do anything about it has been lacking. Fresh water itself is a pollutant in brackish and saline ecosystems. Discharges from the lake weren't only fresh water, but fresh fertilizer-laden water. 

Lake Okechobee feeds the Caloosahatchee River on the west coast, and the St. Lucie river on Florida's east coast. Discharges to the west contributed to an existing red tide in the Gulf. "Our" red tide here on the southern Gulf coast is caused by a population explosion of a dinoflagellate called Karenia brevisKarenia brevis can't survive in fresh water, but while the west coast was coping with beaches strewn with dead fish and marine mammals, and more, the east coast sustained equally disastrous consequences due to a nutrient-fed bloom of blue-green algae. Some places, like Sanibel Island, near the mouth of the Caloosahatchee,  got the worst of both worlds. Sanibel even had to deal with a 21-26 foot-long dead whale shark that washed up on one of its beaches. (Reports on the size differ). Florida lost numerous dolphins, sea turtles, and approximately 13% of the manatee population. 

Lake Okechobee feeds the Caloosahatchee River on the west coast, and the St. Lucie river on Florida's east coast. Discharges to the west contributed to an existing red tide in the Gulf. "Our" red tide here on the southern Gulf coast is caused by a population explosion of a dinoflagellate called Karenia brevisKarenia brevis can't survive in fresh water, but while the west coast was coping with beaches strewn with dead fish, dead marine mammals, and more, the east coast sustained equally disasterous consequences due to a nutrient-fed bloom of blue-green algae. Some places, like Sanibel Island, near the mouth of the Caloosahatchee,  got the worst of both worlds. Sanibel even had to deal with a 21-26 foot-long dead whale shark. (Reports on the size differ). Florida lost numerous dolphins, sea turtles, and approximately 13% of the manatee population. 

The state sustained millions of dollars in lost tourist revenue as well as cleanup costs. Fisheries and related business such as marinas, fishing guides and boat rentals also suffered catastrophic losses. With no income tax, Florida depends heavily on tourism revenue and taxes, and the blow was bad enough finally to jolt some political actors awake. It's too bad that it takes a massive pocketbook issue like this to speed up significant corrective activity. One would think that degraded ecosystems and lowered quality of life would be enough.

Karenia brevis produces a neurotoxin that builds up in the food chain. Wind causes it to be aresolized, and many people living near the coast, including me, end up with real respiratory distress from red tides. Some people even need to be hospitalized. It's quite possible that it contributes to the deaths of marine mammals and sea turtles, which all breathe air. This January hundreds of dead fighting conchs washed up on one Marco Island Beach. If you think dead fish smell bad, wait until you get a whiff of rotting mollusks! Our canal turned a nasty reddish-brown color, and the fish, first catfish and mullet, started floating belly-up. 




Red Tide in Our Canal


After a few weeks' absence, red tide is back in the region, if not in our own backyard. The bloom gets blown or carried out by tides into the Gulf. When we get westerly winds it blows back in. This time around it is affecting fish-eating birds such as royal terns, cormorants and pelicans, along with fish, mollusks and sea turtles.

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The cooler weather this fall and winter has given us a bit of seasonal color. Some years the Virginia Creeper stays mostly green, but this year my neighbor's vine, creeping through the slats in our fence, sported lovely reds and violets. It's a pretty vine, even green, but it is too rapacious for most landscapes - especially small ones. Her yard crew pulled it out shortly after I made my sketch, but it will pop up again. 




Virginia Creeper - Parthenocissus quinquefolia


In the meantime, dune sunflower, other seasonal flowers, and visits by migratory birds keep the gloom and doom away. I even saw a leucistic grackle, something I'd never heard about before. The feathers on its head were startling white. I haven't seen it since.




Friday, April 12, 2019

Southern Gothic - Spanish Moss

 No Southern Gothic movie would be complete without the other-worldly festoons of Spanish moss, Tillandsia usneoides. It certainly can convey a mood of eerie loneliness and mystery, but for southernors it pretty much just blends into the background. That's a shame, because as garden writer Rufino Osorio puts it, "were it not so common, (S. moss) would rightly be considered one of the wonders of the plant world."*


Spanish Moss Hanging from  Strangler Fig - Rookery Bay Reserve 


Spanish moss is the ultimate epiphyte. Osorio writes, "It has come as close to an aerial existence as a plant can get without sprouting wings and flying." *  The plant is much-reduced, consisting only of a few alternate leaves in a typical Bromeliad rosette wrapped around a long, wiry stem, which produces another rosette in an endless chain.



Tillandsia usneoides - Habit



The leaves produce tiny flower spikes. The flowers also are tiny - maybe 3-4 millimeters across, and very easy to miss. The 3 petals are yellow-green. The flowers are said to be fragrant, but I have trouble detecting an odor. They are pollinated by tiny insects. My plants are flowering now, but not abundantly. 



Flower - Much Magnified



Tillandsia usneoides gets its name from the "Old Man's Beard" lichen, Usnea, which it resembles superficially. The photograph below shows a colony of Usnea that has benn blown to the ground in a scrub area of Rookery Bay Estuarine Reserve.



Usnea - Probably Usnea florida



Like other epiphytes ("airplants") Spanish moss gets its nutrients from rainfall and throughfall, rainwater filtered through leaves and other structures. For this reason it can be used to measure heavy metal pollution in urban areas.** T. usneoides is covered by a layer of specialized umbrella-like scales. The scales are made up of dead cells, with a living stalk. The dead cells soak up water and dissolved nutrients, which the stem then transports down into the mesophyll, the tissue sandwiched between the top and bottom epidermis.




Habit, Specialized Moisture-Absorbing Scales  Right Center


The plant propagates itself by seeds, or by wind and animal dispersal. Birds may use it to build nests. It can tolerate anything from the extreme drought and heat of Florida scrub, where it likely survives on dews and fogs, to shadier and wetter situations. If a strand ends up in a favorable site, even a utility wire,  it will start growing. "My" Spanish moss was left behind as a few strands by the previous homeowner, and I have divided it as it flourished. Twenty-odd years later I have 3 large colonies.( I'm not sure whether the festoons are one plant curled and twisted around itself, or several plants). 

Ecologically it has value as a nutrient recycler, and as habitat for small insects and arachnids. Certain birds and at least one species of bat use it for hiding/roosting. Birds use it to construct nests. Some people think that it is parasitic and that it kills trees, but that isn't so. Healthy trees can produce new leaves faster than the Spanish moss can grow, but a declining tree provides an ideal habitat, so that it might look like the plant has killed it. That said, a heavy growth might make survival harder for a declining plant, because it would shade some of the leaves. Sometimes the colony can get so large and heavy that it breaks branches. 


Spanish moss is widespread in the United States - throughout the Southeast through Texas, and north to Virginia. It also occurs in the Caribbean, Bermuda, the Bahamas, Mexico, Central America and South America down to Chile and Argentina. In some of these areas it is restricted to the coastal plains or lowland and swamp habitats. 


T. usneoides on Scrub Oaks - Naples Preserve, Florida



Spanish moss was, and to some extent, is still used by America's indiginous people for many purposes. Camp bedding, medicines, balls for sports, plugging leaks in dugout canoes and  fire arrows are just some of them. Stripping off the outer layers of the plant leaves a tough, black "wire," which could be used for making cloth or rope. ***

Pioneers used it it many of the same ways. Up until around the 1920's harvesting Spanish moss provided much needed cash for subsistence southeastern farmers. They gathered it, composted it to remove the outer covering, and took it to "ginneries" to be combed and baled. It was sold as upholstery stuffing. The last "moss" factory in Gainesville, Florida, burned in 1963.

It was hard, sometimes dangerous work, as people needed some kind of long pole with a hook to snag it from trees, and sometimes brought down snakes and insects along with the moss. Moss gathering is still practiced in some southern states, a tradition handed down from one generation to another. Now the primary market for Spanish moss is horticultural or for florists' arrangements, either dried or green. **** Several cultivars are available commercially.


Spanish Moss on Oak, Hickey's Creek, Lee County Florida

Spanish moss is an integral feature of the southern landscape. Long may it wave!


Sources:

* Rufino Osorio. A Gardener's Guide to Florida's Native Plants. University Press of Florida. 2001. p.310.

**Oxford 400.Oxford 400

***Bradley C. Bennett. "An Introduction to the Seminole People of South Florida and Their Plants. Part11: Seminole Plant Use." The Palmetto. Fall/Winter, 1997. pp. 16-17, 22.

****Kristine Stewart, Ph.D. "Gold Mine of the Air: The Spanish Moss Industry of Florida." The Palmetto. Vol.21:1. (Nov. 2001).  pp.12-13, back cover.

The Palmetto is the quarterly journal of the Florida Native Plant Society.Florida Native Plant Society

Thursday, February 21, 2019

Blackroot

Blackroot, Pterocaulon pycnostachym (Michz.) Elliott is a Florida native that doesn't usually attract much attention, but develops into a beautiful garden plant given a little TLC. In scrub, especially, it can look pretty sorry, but the fact that it survives at all in that habitat is evidence of its incredible tenacity. It also grows in pine flatwoods. It occurs throughout Florida except in a few of the northern and western counties, and mainland Monroe County, which is mostly swamp.  Since these areas are sparsely settled, even now, it may be that the plant grows there but has not been vouchered officially.

It's a perennial, and it does have a big black root. Its main charm is its foliage, not its flowers. "Not showy" is sort of an understatement, though the bloom spikes themselves are quite interesting. It is a member of the Aster family. Flower heads grow in a spiral around a long, rather spongy and felty stalk at the ends of branches. There are only disc florets, not petal-like ray flowers. The flowers themselves are pale white turning brown with age. Aster flowers  don't have a traditional green calyx. Instead, they have a ring of persistent chaff-like hairs (pappus) at the bottom. The pappus often aids in seed dispersal. Milkweed seeds are attached to a similar structure, though it is not related to the calyx. As the achenes (dry fruit consisting of a hard outer coating surrounding a single seed) mature, the pappi can become very noticeable. Blackroot's interesting texture and form, beautiful leaves and strange stems more than compensate for the bland flowers.




Numerous disc florets and pappi


One of the most interesting thing about the plant is its decurrent leaf bases. The leaves are not stalked, but attached directly to the stem, and the base of each leaf extends like a wing down the stem until it is interrupted by a different leaf, which starts the process anew. This gives the plant an even more 3-dimensional look, and certainly adds interest. The stems are soft and pithy, turning more woody with age. Pruning old, dry stems keeps the plants looking their best.


StemStudies



The veins, pronounced on the back of the leaves, show up as a delicate  white ornamental tracery on the top side. A dense layer of hairs that appear like a network of cobwebs under magnification make the green leaves look gray, silvery, or just blindingly colorless in sunshine. The undersides of the leaves are more cream-colored than green. The leaves are alternate, and their edges are slightly notched.






Detail of Veins, Pressed Leaf, Leaf Rubbing, Color Trials





Beautiful rose-pink new growth is also one of the plant's charms. The coloration appears on new leaves, flower spikes, and even stems.








Pterocaulon pyncnostachium is very tough, and can grow in extreme drought and sun, or in more moist and shady conditions. It also can be grown in a pot. In my yard it goes dormant or semi-dormant in winter, probably due more to lack of water than cold temperatures. It is not troubled by insects or diseases. Its stems grow both upright and in gentle arcs. It really is a very desirable plant for a naturalistic garden, but does not seem to be readily available. I got my plant from a friend, sadly no longer living, who had a small native plant nursery.



Pterocaulon pyncnostachium - "Blackroot"


An herbal concoction called "Blackroot" is available commercially . This is not made from the same plant, but instead, is a preparation of Veronicastrum virginicum, also called "Culver's Root." Just one more example of why scientific names are a good idea.


Text, illustrations, photos by Jeanette Lee Atkinson


Tuesday, October 30, 2018

Leaf Cutter Bees

A week or so back I was delighted to see the chewed margins of this pipevine (Aristolochia sp) leaf. Chewing is usually cause for alarm in the garden, but in this case it is evidence of leaf cutter bee activity, something to be welcomed.


A Leaf Cutter Bee Was Here!


The species I see could well be native to Florida. It also could be Megachile rotunda, the "alfalfa bee," imported into the U. S. after the 1930's to: you guessed it! pollinate alfalfa fields. Honeybees are not efficient pollinators of alfalfa. This useful little critter has spread since then to much of the U.S.

The family of leaf cutter bees, Megachilidae, contains at least 2,000 species, and occurs virtually worldwide. Around 63 -75 species can be found in Florida alone. Another common leaf cutter bee, the "mason bee," Osmia sp., constructs its egg chambers with leaves and mud. Osmia bees are produced commercially and can be ordered over the Internet.

The Megachile bee is about the size of a honeybee. It does not sting unless provoked, and the sting is said to be less painful than that of a honeybee. It is somewhat chunky, with black and white bands on the abdomen and black on the upper thorax. Both sexes are generalist pollinators - they like just about everything. Only the female nests. Instead of packing pollen into leg pouches like honeybees, she carries it on the underside of her abdomen.




Megachile on Heliotropium polyphyllum 


She will nest in just about anything the right size and shape - oarlocks, unused hoses, rotten wood, hollow twigs, burrows, or manmade nesting boxes. In Florida the bees also like holes drilled in stucco for fastening hurricane shutters! Nests in underground burrows don't seem to be affected by short-term inundation, or by getting gradually filled in.

Once she has found a suitable nesting place, the female cuts a round bottom plug, and then builds up the chamber with overlapping oval pieces of leaf. She cuts  these sections out of leaf margins one at the time. She works smoothly and precisely, taking only a few seconds. She's so fast that you're lucky to catch her in action. She carries the leaf section slightly curved, under her abdomen, to her nest. I've timed a bee in action, from entrance to exit from burrow.  She takes 60 to 90 seconds to get the new leaf section in place.


Megachile Carrying Oval Leaf Section


When the chamber is complete she packs it with a mixture of nectar and chewed pollen, lays a single egg, and departs to cut the circular seal, or plug. This is when the closely related cuckoo bee. Coelioxys sp., may make her move. She crawls into the nest, and lays her egg, which will hatch and eat both pollen and competing larva.

The  Megachile bee makes a series of chambers, one atop the other. The resulting cylinder is said to resemble a cigar somewhat. It would have to be a cigar no bigger in diameter than a straw. I extracted one from an oarlock one year and kept it in a dish. After a month or so, a faint, persistent buzzing told me that something was happening, and sure enough, one bee, followed quickly by another, emerged. At this point I took the bees and the rest of the cylinder outside where they belonged.

Leaf cutter bees live only a few months. The female dies after she completes her egg-laying. The larva pupates and overwinters in the nest as an adult until it emerges in the spring.



Megachile on Goldenrod


If you're trying to grow a prize rose or dahlia for exhibition, the leaf cutter bee could be a nuisance. Otherwise, since they are solitary, not part of a colony, the damage they do is minimal, and I think just adds interest.

There is a wealth of information on the Internet about leaf cutter bees. The Honeybee Conservancy site has great info, pictures and video. Click the following link to get to the site. leaf cutter bee. The University of Florida also has a good article. Go to edis.ifas.ufl.edu/in619. Another of my favorite sites is from the BeeInformed organization. https://beeinformed.org/2014/07/30/alfalfa-leafcutter-bee-.


Megachile Work on Gopher Apple, Licania michauxii


Honeybees  have the reputation of being the best crop pollinators, but that is not necessarily the case. Our native bees are vital in the pollination of crops, ornamentals and our native flora. I don't know whether the one in my yard is a native or the imported alfalfa bee, but either way it is more than welcome.


Monday, August 20, 2018

Summertime Blues 2 - Blue Butterflies

More summertime blues - (although they fly all year) - are tiny butterflies. The Cassius Blue and Ceraunus Blue butterflies breed in the yard, and it's possible that we have had visits from Eastern Pygmy Blues, since we are not far from the salt marshes where they and their larval plants thrive.

Generally the Florida Blues fly very close to the ground. Their flight is fast and erratic, and they don't seem to perch long enough for me to id them. Blink and you'll miss them. Their underwings are drab, and they fold their wings when perching. But you glimpse flashes of startling blue when they flutter to another spot.

They are tiny butterflies. The Ceraunus Blue has a maximum wingspan of  0.7 - 1.2 inches. The Cassius Blue is the same size or a little larger at the bottom range. The Eastern Pygmy Blue, one of the tiniest butterflies in the world, maxes out at  0.7 -0.9 inches.

They are among the "Gossamer-Winged" butterflies, and the delicate iridiscent blue of their upper wings makes that a very apt description. Black and white banded antennae are another characteristic of butterflies in this family, Lycaenidae, which also contains the Hairstreaks.



Ceraunus Blues and Neptunia pubescens



The Ceraunus Blue is quite common in Florida. It breeds as far north as central Florida, west to Texas and California, and south to Central America and the West Indies. Both males and females have one eyespot on each hindwing. The eyespot is quite prominent on the underside of the wing because it is large in relation to the size of the butterfly, and partially ringed with bright orange. Males are a shimmery true blue on top, while females are darker and can appear almost black.

Garden abundance of Ceraunus Blues is said to be low, but we seem to have a resident population. One of its larval host plants is Neptunia pubescens, "Tropical Puff" or "Yellow Puff."  We have a large clump or colony on one side of the driveway. This prostrate spreading legume has a delicate fern-like appearance due to its bipinnately compound leaves and tiny leaflets. When it thrives it arches and tumbles all over itself, and from a distance looks dense. However its fine texture does allow grasses, sedges and other weeds to invade it, so it requires a little maintenance - no water.

When it gets ratty looking I cut it back to the ground, and it regenerates beautifully. Indeed, care should be used in introducing it into the garden because it can be difficult to eradicate. Surrounded by concrete and brick, ours is pretty well neutralized, but I do need to trim it periodically to keep it out of the roadway. Neptunia is a "sensitive" plant, and the leaflets collapse as soon as they are touched - that poses some problems in drawing it!

The butterflies lay their eggs on the flower buds. The eggs, larvae and pupae are so tiny I've never been able to find even one. Neptunia flowers occur in "powder puff" heads, with bright yellow petals and numerous stamens. It doesn't produce enough flowers at one time to be truly showy, but evidently it flowers enough to sustain the Blues.

Perching Cassius Blues can be identified by the "zebra" striping on their underwings. This may be hard to see in my photo, but I can't enlarge it more without losing even more detail. They have 2 eyespots on the hindwing. Both sexes are blue on their topwings, though the female is paler wiith more brown than the male. This species is common throughout Florida, excluding the panhandle. They also range from south Texas, the West Indies, and south to Argentina.



Cassius Blue on Plumbago scandens



They lay their eggs on various legume and leadwort species. I used to have more of them because I grew the Florida native Plumbago scandens. This plant is problematic in the yard because it  resists training and scrambles over anything and everything in its path. Its small white flowers are attractive, but the buds and seed pods are extremely sticky, and if you or your pet gets them tangled in hair/fur, the only solution is to cut them out. I took out most of it, but one plant somehow escaped my grim reaping, so I am going to try once again to train, or at least contain it, just for the butterflies.

Milkpea (see my Jan.8, 18 post), a plant I vainly try to eradicate in the yard, is another larval host for Cassius and Ceraunus Blues. I called a temporary truce until  they had a chance to bring up a brood or two, but the milkpea is getting totally out of control in some places, so that's going to end soon.

Blues like to nectar on Phyla nodiflora, "Fogfruit," among other flowers. Phyla is also a magnet for the beautiful White Peacock butterfly, which uses it as a larval host. This plant, another member of the Verbena family so popular with pollinators, can be trained into a beautiful hanging basket. One of my brothers had a trick of looping the flower stalk around itself and then sliding it up quickly to pop off the head. He used to shoot the heads at me while we waited for the school bus. I tried, but never managed the snap.





Phyla nodiflora and Ceraunus Blue






Sources: Butterflies through Binoculars: A Field, Finding and Gardening Guide to Butterflies in Florida. Glassberg, Minno & Calhoun. Oxford U. Press, 2000. Plate 16 and facing page, pp. 78-81.

Florida Butterfly Gardening. Minno & Minno. U. Press of Florida, 1999. pp. 75-77.

Florida's Fabulous Butterflies. Emmel & Kenney. World Publications, 1997. pp. 18-19.




Tuesday, November 14, 2017

Welcome!

Welcome to Florida Backyard Sketchbook. I know, just what the world needs - another blog. But when I see the rate at which natural Florida is vanishing, the need to preserve, defend, and at least, chronicle its unique character is overwhelming. I hope to provide a glimpse of this character through the perspective of my literal and figurative backyard. This blog is dedicated to a space and place too often misunderstood, under-appreciated, and mistreated.



                                          Entrance to Blackwater Creek
                                          10,000 Islands, near Marco Island, Florida



Please bear with me as I scrabble up the learning curve for blogging. If I wait until I know what I'm doing, I never will get anything posted!