A blog exploring the pleasures of gardening in Montgomery County, Maryland, USA.
Sunday, September 30, 2007
Some of the bulbs of autumn
Asters, yet again
Saturday, September 29, 2007
Asters again
Incidentally, that natural pairing of goldenrod and aster is easily reproduced in the garden. The goldenrod 'Fireworks' makes a particularly good companion.
Other New England aster cultivars have been introduced to the garden, too, and these have crossed with the original plant to produce seedlings in an array of silvery pink, rich pink, dull purple-blue and saturated wine red. The cultivar 'Alma Potschke' provides a color unique among the New England aster cultivars, a vibrant, intense pink-red unlike any other color I know in the genus.
This species is characterized by rough, sometimes clammy, scented foliage. Plants are typically four or five feet high, sometimes more. They begin to bloom in August, although the early flowers are not numerous or conspicuous. They are still blooming in October. Left to grow without attention, they form thick clumps of rigid stems. The counsel of perfection is to divide them annually, spacing each plant about eighteen inches from its neighbor. Don't ask me if I've ever done this.
Other asters growing in the garden include Aster cordifolius (aka Symphyotrichum cordifolium), Aster divaricatus (aka Eurybia divaricata), Aster umbellatus (Doellingeria umbellata) and Aster amellus (aka Aster amellus). The names in parentheses here are old names newly revived to express more clearly the interrelationships of these plants.
Aster cordifolius seeds itself around freely and forms low mounds of smoky blue gray in October.
Aster amellus is one of the European asters, asters which have a variable track record as garden plants in this part of the country. On trial now is the cultivar 'Doktor Otto Petschek'.
One other aster once grew abundantly in this garden but was eventually expelled: the frost aster. This is the small-flowered, weedy aster often seen blooming from cracks in streets or sidewalks, or in rough dry waste places. It's not unusual to see plants blooming even in December, and so it would seem to have value as a late blooming garden plant. But once brought into the garden, it quickly sheds its former poverty and waxes lush and overbearing. When growing well, a single plant can form a four or five foot hemisphere of bloom; and at that late season these plants can be a boon to bees and other nectar foragers. In the border they produce a mist-like lightness of bloom which is very beautiful. After such prolific bloom, the borders will be full of volunteer seedlings the next year and for years thereafter. And the parent plants are rhizomatous, too, and get around freely. Eventually it dawned on me: it's high maintenance and too much of a good thing. Now I enjoy these in the local fields.
Asters
Monday, September 17, 2007
the grape soda factory expoded
Where is it coming from? It's coming from the surviving kudzu which grows high up into the trees which grow on a formerly abandoned lot now converted into parkland. Years ago, the kudzu sprawled over the area covering acres of space. When the area was cleaned up and opened as a park, there was an outcry to get rid of the kudzu. Much of the kudzu was removed, then the embankments over which it previously sprawled began to erode as many cubic yards of earth washed out during storms. Once the kudzu was gone, the mile-a-minute vines moved in and successfully occupied virtually every square foot formerly covered in kudzu. How's that for out of the frying pan and into the fire?
Few people are probably old enough to remember when kudzu was grown as an ornamental. One sometimes still sees it shading country porches. Since it's fully capable of completely covering any house, one wonders how much time is spent keeping it under control.
I'm tempted to host a gathering for some of my gardening friends at which I'll serve foods made with some of the less usual products of plants we grow. What will I be able to make with kudzu flour? If I decide to keep to a Japanese theme, there will also be something made with konjac, maybe something made with gobo.
Sunday, September 9, 2007
Barnardia
The plants in the image were grown from seed; I simply scattered the seed on the ground, stepped back, and two years later the plants were large enough to bloom. Now that I've grown this plant for several years, I'm beginning to suspect that it has some potential which has largely been ignored. Isolated plants definitely fall into the "curiosity" category: they are not at all showy. But in a large group, this plant has potential. Now that I think about it, it would make a good border for an extensive planting of Begonia grandis. Another nice association is that with Iris dichotoma, although the iris is apt to reach its peak before the Barnardia starts. The earlier colchicums bloom at about the same time and mix nicely.
The Barnardia puts up foliage in the autumn, but this foliage does not persist through the winter.
Although the individual flowers of the Barnardia might remind some of those of Liriope or Ophiopogon, the seed capsules and seeds will not.
Friday, September 7, 2007
the glorie of all these kindes
This species flowered here for the first time about seven years ago. That corm had come from an English source (although doubtless Dutch grown); it was small when received, and it took a year or two of TLC to bring it up to blooming size. The year after it bloomed it rotted during the summer. That plant had a much smaller flower than the one shown above but was otherwise similar.
I got a second chance last year with a corm imported from Janis Ruksans. This one too was small and did not bloom but it did grow well. During the summer I was careful to keep it dry. When checked for the penultimate time in mid August, it seemed fine. When checked again a week ago, I was crushed: the corm had shrivelled badly, leaving only a small bit of living tissue. That living scrap is now in the refrigerator in a zip-lock bag. It seems to be recuperating.
The flower shown above came as a corm in mid-August from JMcG, my source of choice for intriguing bulbs. This one has a flower about three inches in diameter - more if it's flattened out - and is everything I've been hoping for from this species. It is indeed "the glorie of all these kindes."
Bottle Gentians
Firmly lodged in the "all the rest" category are the bottle gentians. We would probably appreciate these much more if some of their overweeningly beautiful relatives did not exist. But the bottle gentians are like those people who exist in the shadow of a deservedly celebrated sibling: the best they can hope for is a bit of reflected glow.
I would not want to be without the bottle gentians. For one thing, they have taken care of themselves in my bog trays for years. The earliest ones are blooming now; there are others which do not bloom until late October or early November. The soft blue, curiously shaped flowers are always a pleasure in the late garden. I've never noticed a fragrance, but the local bumble bees seem to be obsessed with the flowers.
Most gentians have an elegance of bearing and form which is characteristic of the group. The bottle gentians share this: long before the flowers show color, the developing buds are very interesting. Years ago, I had a pot surfaced with one of the local mosses. In the pot grew some bottle gentians and the little Japanese orchid called egret flower (Pecteilis/Habenaria/Platanthera). The orchid and the bottle gentians didn't bloom together, but for months that little pot was the source of keen interest and pleasure.
Sweet Autumn Clematis
What induces flowering in this plant? A few weeks ago, while I was visiting in western Virginia, I saw this plant blooming freely in local gardens. I'm pretty sure the plants at home were not even showing flower buds at that time. The area in question is south of here. You would think that the farther south you went, the later the plants would bloom, not the earlier.
And how can the scent of the flowers be described? It's a complex scent, one of those scents which elicits different descriptions from different people. To some it smells like vanilla, to others almond, to others like both of those but with a bit of lemon added; a neighbor recently mentioned that one she once had smelled like ginger.
If you are as old as I am, for decades you knew this plant as Clematis paniculata. If you get the same catalogs I do, perhaps you remember the same confusion when you read about hybrids of Clematis paniculata which, as you read the description, sure didn't sound like the plant out in the garden. That Clematis paniculata is a New Zealand species. The plant in the garden has had many names over the years, but is now generally called C. maximowicziana.
In nearby northern Virginia, on the drive down to Alexandria, one passes areas where what seem to be acres are blanketed with a white-flowered, late-summer blooming clematis; is it this species or is it C. virginiana?
Summer in the greater Washington, D.C. area
On the other hand, there is plenty to do inside in setting up databases for printing labels later, web site stuff, blogging stuff and things like that.
To me it has always seemed so odd that so many people look forward so much to summer. You can have it as far as I'm concerned. I'll never understand why anyone would take their vacation during July or August unless they are leaving this area and heading for somewhere with conditions fit for human activity. Instead, a lot of people in this area leave the metropolitan areas and head over to the ocean beaches where the conditions are even worse. Who in their right mind wants to walk on scorching sand in their bare feet during the summer? Who in their right mind would leave the areas regularly sprayed for insects and explore the marshes, the marshes which are so poetically beautiful in November but which in July and August reek of dead fish and rotting algae. Years ago I went on a bird watching trip to one of the Atlantic barrier islands. The night was still. We slept in tents. In the morning, I opened the zipper of the tent fly just enough to get my hand out and grab the outer zipper. Within seconds, the back of my hand was black with ravenous mosquitoes. What great choices: stay in the stifling tent all day to avoid the mosquitoes, slather yourself with toxic mosquito repellents, suffocate under protective clothing. The one sensible choice -decamp to the nearest McDonald's - was nixed because we hadn't seen the birds we had driven for four hours to see. I didn't mention those four hour drives to get to the beaches, did I: why does any sane person endure that?
Add to those miseries those elicited by the introduction of the Asian tiger mosquito and the upsurge in deer ticks: summer is for masochists, or at least for people in deep, very deep, denial about what's really happening around them. And what's so great about the summer flora? All those coarse, weedy, daisy things and grasses and impatiens and petunias rolled off the bolt by the square yard and vines which might inspire a new version of Laocoön statuary: I can see it now, a struggling Laocoön and his sons wreathed in bindweed and dodder, their skin lacerated by festoons of mile-a-minute plant. I would just put a trowel in the hand of one of them and re-title the statue The Gardeners Of Summer.
And then there is the dilemma of air conditioning. Generally speaking, I hate it. During that fortunately brief period when the temperature is well into the 90s F late into the evening, I sometimes give in and run the air conditioner. But is a summer being forced to stay in an air conditioned building different than so many other kinds of imprisonment? How are we supposed to hear the cicadas and katydids through tightly closed windows and over the incessant hum, rumble and whirring of the condenser and fans? Where is the sense of relief which comes with the evening and its sometimes cooler temperatures? Lightning bugs are not the same viewed through the house windows.
Summer also stinks, literally. When the neighbors have a crab feast and decide to dump the aggressively odoriferous evidence over the back fence,the entire neighborhood wakes up to vibrant reek which only a raccoon could love. Forget to cover the garbage? Want to wake up fast on a summer morning?Lift the lid of the formerly uncovered garbage can and try to suppress the retching as you count the zillions of lively maggots ravening the garbage.
And need I mention that after an hour or two of trying to slug it out on a hot summer day, I’m not about to be confused with a Sweet William myself? I’ll bet I’m not the only one who makes a bee line for the shower as soon as the lawn mower is put away.
I mentioned deep denial above; summer is the season when even the most optimistic among us in this area abjures the word "alpine". Yes, it's a thing much to be desired. Just the thing to include in your vacation plans. But for those of us who stay put, summer invites us to wake up and smell the coffee, the roses, or more likely a gag-inducing whiff of the now-well-scattered remains of the small mammal which inauspiciously took shelter in that lawn mower.
Ever heard of aestivation? I recommend it highly.
Sunday, September 2, 2007
Darlow's Enigma
I don't know who Darlow is or was, but I can partially explain the enigma. There has long been controversy among rosarians about the identity of the so-called musk rose. At the end of the nineteenth century, there still existed a rose which had been grown in British gardens for a long time, perhaps centuries, and was known as musk rose. Under British conditions, this rose began to bloom late in the season, sometimes not until August. One of the puzzles of modern horticulture is whether this plant still exists. There is a plant making the rounds which seems to fit the old descriptions; evidently it is not reliably hardy here in the greater Washington, D.C. area. This is one of the parents of the Noisette roses.
My guess is that 'Darlow's Enigma' was a candidate at one time for consideration as the true musk rose. Do any of you know the whole story?
Several years ago, an internet friend, Joe, was in the area and came by to see the garden. As we took the tour, I was pointing out things here and there; as we passed under the pergola, Joe offhandedly said "Oh, I see you have 'Darlow's Enigma'!" I was dumbfounded. First of all, as roses go, 'Darlow's Enigma' is rather nondescript. I would be reluctant to identify it in another garden. For another, I doubt that many people grow it. How in the world did he even know about it? It turns out that in an earlier incarnation he had managed an antique rose collection.
The chrome-yellow flowers in this image are one of the "yellow" forms of Campsis radicans. Catalogs often illustrate a bright lemon yellow campsis, and if such a thing exists, I would very much like to have it. The color of this chrome-yellow form is a disappointment to me.
A peek out onto the deck
Milkweed bugs
Salvia guaranitica
Impressive as the intense flower color is, it disappears when the plants are viewed from any distance. And it takes a lot of flowers in this color to make much of a splash. But there is a real sense of satisfaction to be had in viewing such a vibrant blue in the garden.
It has taken a while for me to become comfortable with the idea that this is a reliably hardy perennial in our climate. But local gardeners have been growing this plant for at least twenty years that I know of. If we go back to having severe winters, perhaps we'll lose them; but for now, I'm using this plant freely in some of the borders.
The one shown in the image above is the one called 'Black and Blue'. I also grow the form with a green calyx and the same intense cobalt corolla color. The pale blue of 'Argentine Skies' is a lovely color, too, but it does not move me the way the cobalt-colored forms do.
Saturday, August 25, 2007
Monarch caterpillars
Vesper iris
But let's get back to August and the vesper iris. It's been placed in the genus Pardanthopsis in the past, and back in the days when the blackberry lily, now Iris domestica, was called Belamcanda chinensis, the two were hybridized to produce the "bigeneric hybrid" ×Pardancanda norrisii, sometimes called "candy lilies". The "×" (strictly speaking, the multiplication sign, as in "times" or "cross") before the name Pardancanda indicates that it is a so-called nothogenus. Nothogenera are, to put it plainly, phony genera. Nothotaxa are used in horticulture to name man-made groups which do not exist in nature.
Now that the vesper iris and the blackberry lily are both placed in the genus Iris, what should the candy lily be called? Iris × norrisii maybe? That would make it a nothospecies.
I don't see the vesper iris in local gardens very often. I like any plant which comes into bloom late in the summer: they bring freshness to the garden scene, a mid-summer reminder of the vernal profusion. And the vesper iris is beautiful, useful and interesting in its own right.
This plant is often described as a perennial, although some plants die after flowering and producing lots of seed. So keep an eye on the seed pods and hold some seed just in case. They are relatively quick and easy from seed.
Why is it called vesper iris? The term vespers survived in the English language only because until relatively recently people really did attend late day or early evening liturgical services called vespers (from the Latin word for evening). The flowers of this species do not open until late in the day - around 4 P.M. here - and evidently only last part of one day: there is no matutinal service. They are visited by bumblebees.
The forms I see now are all very much alike, but in the past seed grown strains showing color variations were grown. These included forms with more or less pink and white color. I don't know if these still exist.
Friday, August 24, 2007
Owls
Three sorts of owls live in or around the garden. I’ve seen two of these, the barred owl and the screech owl. The third, the great horned owl, I generally only hear as a somber, oddly moving call originating off in the far distance.
For several years a screech owl lived during the fall and winter in a tree near our house. In the evening, it would move into the yew hedge along the north side of the garden. There, it would trill for hours. One night we went out with a flashlight to see if we could see it. It was only about five or so feet from the edge of our deck, and sure enough, we spotted it. It was the rufous phase, a tiny mite not much bigger than a beer can with enormous eyes.
It’s easy to imitate the trill of the screech owls, and they respond to any decent imitation. One night I sat in the garden and did this for perhaps twenty minutes in the gathering dusk. Suddenly a compact bullet of a bird shot low to the ground up one of the garden paths and flew right up behind where I was sitting.
It’s easy to understand the reputation of owls for being supernatural once you’ve been around them under the right circumstances. Years ago I was hiking along the C&O Canal in broad daylight when a slight movement just above my sight line caught my attention. I looked up just in time to see a big bird the size of a chicken take flight. At that moment my hackles rose: instinctively I was responding to the otherworldly quality of what I was experiencing. There was this really big bird only a few yards from me launching itself into the air, and it wasn’t making any noise at all that I could hear. It was as if I were watching it on TV with the volume turned off. That bird was a barred owl like the one shown above.
Last winter our neighborhood became barred owl central for a while. I heard them daily; on my evening walk with Biscuit (our dog) we passed a tree from which on several occasions a barred owl flew as we passed under it. Once one called from somewhere very near my open bedroom window and woke me from a deep sleep. Then in February a pair selected a group of old pines nearby in which to carry on. The sounds they made were amazing, nothing like the appealing woodwind tones we usually hear. Each night for about two weeks I would hear these sounds which suggested a large bird being torn apart, crying and screeching piteously all the while.
Barred owls sometimes come into the garden for a brief stay, especially in the winter. On rare occasions they will sit out in the open.
The call of the barred owl has a very distinctive sound quality: it seems to stroke your eardrum in a way which is oddly pleasurable. It’s easy to do a passable imitation of their call, too. Once while Wayne and I were birding at Huntley Meadows in nearby Virginia, I was bored and decided to call the barred owls. I think this generally embarrasses Wayne, especially when I do it in shopping malls. But sure enough, after letting out a couple of calls, I got a response from the distance. Wayne didn’t miss a beat: he said it was another birder on the other side of the property doing his own owl imitation.
More nudity in the garden
You might think that no one who has seen the underwear ads in the Sunday supplement to the newspaper would bat an eyelid at what those old books contained, but the authors of those books pursued their topics with a determination and frankness which suggests that even they might have had more than botany on the mind - more, as in political and social reform in addition to the merely naughty stuff.
So, what can we do to spice up our gardens now? I’ve never been invited to a garden party where the host read artfully selected passages from the works of Linnaeus, but who knows, it might happen. But I have planted naked ladies and naked boys, for starters. Among the more upright sorts of gardeners – probably not the ones you want to invite - these are known as lycorises and colchicums respectively. Having assembled your audience, your job is to then relate the many vernacular names in as colorful a manner as your sense of discretion allows. This recitation is best accomplished as a genteel postprandial walk through the oporanthous garden; one points shamelessly to and ogles each of the ecdysiasts as he or she is encountered. They arise tumescent and naked from the ground: there are no apparent stems or leaves to hide their glory. They blush glowingly against the bare soil of the garden.
Snakes in the garden
There are six species of snake which turn up now and then in this garden: black rat snake, northern ring-neck snake, northern brown snake, eastern garter snake, northern water snake and worm snake. I have not given up hope that the local copperhead population still hangs on, but I have not seen any evidence of that in many years. Encounters with the worm snake, a largely fossorial species, are sporadic. The northern water snakes and eastern garter snakes come and go, probably in response to the population density of breakfast, lunch and dinner. The black rat snakes are resident, very literally so – I find their shed skins in the attic. The northern ring-neck snake and northern brown snake are also probably resident. Both are small. To find the ring-neck snakes, turn over any flat objects on the ground. In late August, the young ones sometimes turn up in the basement, often tangled up in a spider web. The brown snakes turn up here and there when I’m down close to the ground or scooping up handfuls of leaves.
I take the presence of snakes in the garden as a sign of its health: the garden supports a population of toads and an occasional frog wanders in and stays awhile. Of birds, what can I say? How about this: we go through several hundred pounds of bird seed a year. Our black snakes enjoy only the plumpest, much pampered birds. No pesticides or herbicides here, thank you. Yes, there are more weeds than most self-respecting gardeners would tolerate. But how many gardeners can expect to encounter six different sorts of snake in the course of the year?
In the photograph, you see what might be birds of a feather flocking together: the eastern garter snake at the base of the dragon arum, Dracunculus vulgaris.
Oporanthous bulbs
I think I stumbled on a useful word the other day. I had to make it up, but since I did that in the conventional way, it would not surprise me to discover that someone in the past had already wandered down the same path. The word is oporanthous, meaning flowering in late summer, and it describes exactly those late-summer blooming bulbs such as Lycoris which catalogs tend to misleadingly describe as autumnal. It was a question about the meaning of the word as a Latinized botanical name which led me to it; I merely anglicized it.
We don't really have a term to describe these plants, and there are several of them. A collected suite of them in a corner of the garden makes for a rush of interest before the main flush of autumn bloomers begins. Autumn doesn't start until the third week of September, and many of the plants which deserve to be called oporanthous have finished blooming in our climate by then.
Under my conditions, Lycoris are the preeminent oporanthous bulbs. Earlier this week I drove back out to western Virginia to photograph the plants of Lycoris squamigera seen there last weekend. This area is about one hundred miles west of home. I found the plants without trouble, but I had overlooked one important consideration. The small town where I was searching was essentially a bedroom community: I knocked on four doors without a single answer. I wasn't about to barge into gardens uninvited (although none was fenced), but one of the gardens was attached to a deserted house up for rent. That one I did enter and photograph. In that garden the Lycoris squamigera had been planted in a long row in a field; the row was perhaps a hundred feet long and full of bloom from end to end. I caught the plants in full bloom. They were shorter than the plants in my home garden, and the color of the flowers was a bit different, too: the pink buds showed a stronger blue flush (but not as much as is seen in Lycoris sprengeri) and the flowers in full bloom had a pink color with an underlying tawny quality in contrast to the relatively pure, cold pink color of the flowers of the plants at home. All of the plants seen in flower in this town seemed to be the same, and all together I saw hundreds of blooming scapes, perhaps a thousand. As I stood there looking at the plants, I could not help laughing: they reminded me of an incident many years ago when I was offered some pink-flowered bearded iris with the caveat that they were the color of women's undergarments.
Although I didn't get photos of the well placed clumps in better tended gardens, I did get photos of the plants in the field row.
If you have only seen Lycoris squamigera in bloom as a single blooming stem, you probably have no idea of the powerful presence it can be when blooming in its hundreds. I've known and grown this plant all my gardening life, and I'm still impressed whenever I see a freely flowering planting. And there is something touching about these mass plantings because in many cases the person who planted them is probably long gone. Such largesse is not achieved overnight. Further evidence that the plants have outlived their planter is suggested by the often odd ways they relate to the gardens which now surround them: they have the potential to be a dominant garden presence during their season of bloom, but as often as not seem to be placed as an afterthought. But the Lycoris were probably there first, and the garden which now surrounds them is probably the afterthought.
An old seed catalog I have (do any of you remember the Rex Pearce Seed Company of New Jersey?) offers seed under the name Lycoris squamigera - with the warning that supplies are dependent on their Chinese supplier. I have never heard of this plant setting viable seed, but the ways of nature are often mysterious.