I have clients whose interest in gardens runs to green, and more green. Though my love for the green of the plant is every bit as great as my love for their flowers, I have never had the discipline it takes to restrict my own palette like this. But I find that whenever a client represents their own point of view outdoors, the result looks just right.
These large stone and brick piers punctuate a pair of walls that partially enclose a terrace. I plant them with a mix of plants whose textures are as unlike stone and brick as possible. This is a matter of directing visual attention. The window boxes on the roof of my shop are not so gorgeous. They are made of galvanized sheet metal ordinarily used in the production of ductwork for the heating and cooling industry. The sole function of those boxes is to hold the soil, nutrients and water for the plants-they have no visual interest in and of themselves. The intent here is to acknowledge the beautiful surface of the container as much as the planting.
A green planting has a quiet and serene look, as the greens so closely relate in color and value. The green of these painted Belgian oak boxes harmonizes with the color of the bluestone terrace; the relationship is a subtle one. The Dallas Blues panic grass repeats that color. Monochromatic color schemes tend to read that way, although an ocean of orange is anything but serene. Add some contrasting purple to that orange, which in turn contrasts with the green, and you have a visual party going on. These greens speak softly.
A porch planting plays the spiky texture of a tropical fern off the round chubby leaves of a of large scale pepperomia; the effect is pleasing, not demanding. The elegant English wirework planter reminiscent of vintage conservatory furniture is balanced with a simple and very rustic wreath that hangs on the wall year round.
The container collection is a beautiful one. An American stoneware grape panel container from the 1920’s, and English lead and the Belgian oak box are very different in materials and forms, but very much alike in feeling.
A pair of very old and distinctive French iron planters sit on the walls. I usually plant them with lavender, and alyssum, showy oregano, and whatever other herb like plant seems appropriate. The effect is graceful; the muted colors of every aspect of this space invite contemplation.
Some plants stay green all season, as our summer is too short to permit flowering-as in this large tropical salvia. The fine perennial hyssop hangs on to the ghostly lavender of its flowers a very long time; this is repeated in a lavender trailing verbena. Though there is some color here, it is the relationships of the greens that reads first and foremost.
I think the leaves of tibouchina grandiflora are surely my favorite. The large oval leaves are completely covered in fine white hairs; they are a marvel. Their contrast to the needles of the rosemary topiary is considerable in form, and little in color. Variegated licorice is one of the most versatile of all green plants. The leaves sport two different shades of green; the blotches are very blue green, while the edges are more yellow-green. It works with every plant with which it is paired. This collection of pots benefits from the lively effect of its habit of growth, and relative lightness. Subtle does not mean sleepy.
No one element here dominates a supporting cast. Each element has its own voice, but the close relationship of the voices makes for a space that whispers. Some gardens provide refuge from noise; this I like.
I have never forgotten my ninth grade science teacher, Dr. Watson. He concluded every lecture or discussion with the statement, “And that is the beauty of science”. Though at the time I thought he was a crackpot, I now know he was absolutely right. Today I am thinking about Parthenocissus Tricuspidata; Boston Ivy is an ordinary plant with a fancy scientific name whose primary claim to fame is its ability to grip to and cover walls with dense sheets of leaves. Why today? The fall color of Boston Ivy is one of nature’s most spectacularly glowing moments, ranking right up there with the aurora borealis. 
One wall of the building next door to me sits right on my property line; that would be just about two thousand square feet of beige concrete block. Needless to say, I was not too crazy about the look. Five Boston Ivy plants have just about transformed that wall in four years time; today it is looking exceptionally good. The science behind all this color-the formation of the abcission layer. Don’t black out; I’m talking about the beauty of science here. As soon as the nights get long enough in the fall, the cells that connect the leaves to the stems begin to rapidly divide-but they do not expand. This produces a brittle callus, which slows, and finally prevents the flow of nutrients from the stem to the leaves. The plant is going dormant, and putting any expenditure of energy on hold. This is a survival mechanism, the instinct to preserve life, and the beauty of science. 
At the same time, the leaves slow down and eventually quit producing chlorophyll-that chemical that makes leaves green. If chlorophyll is not constantly manufactured in a leaf, the leaf will fade in sunlight. Chlorophyll masks the other pigments existing in leaves; the yellows, oranges and reds that were there all along are revealed when the production of chlorophyll ceases. 
Though day length triggers this process, the temperatures, the moisture in the soil, and sunlight influence the overall show. A dry growing season can encourage leaves to drop early before they reveal any color. High winds can sever the dry corky abscission layer with the same result. At any rate, the variation and intensity of color on this wall is different every year given weather conditions. I can see that light, water, wind, sun and overnight temperatures affect the leaves on wall at different rates. 
It is easy to see the chlorophyll fading at different rates in different leaves-the color variation within each individual leaf is beautiful. 
Anthocyanins are responsible for the red and purple pigments in leaves. They are manufactured from sugars that are trapped in the leaf. Oddly enough, these pigments are not present in leaves during the growing season. The role of these pigments is not so well understood. If you are interested in reading more about it, The United States National Arboretum has an excellent article on line about the science of color in autumn leaves.
Metasequoia Glyptostroboides-I wish this were my name. The Dawn Redwood is an ancient evergreen tree with a twist; it drops its needles in the fall, after turning this glorious peachy orange. This deciduous evergreen is an anomaly amongst evergreens, which ordinarily hold their foliage all winter. 
They say delayed gratification is the most adult of all pleasures, so maybe I was being childish about the long hiatus between the planting and the blooming. But when spring finally comes, tulips deliver. It is no small miracle that those small white bulbs with their papery brown covers become a plant that can reach thirty inches tall or better, with strikingly large flowers. Even people whose vocabulary does not include the word “garden”, know the word tulip. 
As is my habit, I welcome the one odd plant out in any mass planting. This ocean of Mrs. John Sheepers is all the better looking for it. The blooming of the tulips is one of those garden moments to be treasured. I certainly was not thinking about how cold it was the day I planted , on this spring day. My tulips shake off any late frost; most of any damage is to the leaves that appear early. They are remarkably resilient to rain and wind.
Despite some literature to the contrary, I would not describe a tulip as a perennial. Once they flower, the top size bulb breaks down into smaller bulbs and bulbils. As flower size is directly related to the size of the bulb, a smaller bulb, or collection of will produce smaller flowers, or possibly, no flowers at all. In Holland, once the tulips have bloomed, the bulbs are dug up, sorted as to size and replanted for growing them back to top size. I do not want to dig tulips, separate the bulbs and replant; the Dutch do a much better job of this than I could. This is a long way of saying that I treat my tulips as annuals. When they are done flowering, I dig them and give them away, or compost them.
Daffodils are a much better choice of a spring flowering bulb, should you have a requirement that your bulbs rebloom reliably. But they are not tulips. Treating the tulips as annuals permits me to plant them in places where I will later plant summer annuals. As I do not discriminate against summer flowering plants that are only able to grace my garden for one year, so why not have tulips?
Given that I took this picture September 24, why wouldn’t I be unprepared for the weather here this past week? Just three weeks ago, I still had my summer. Though describing any Michigan weather as “ordinary” is glossing over the truth, our weather ordinarily cools off at a slow enough pace to make keeping up with the job of putting the garden to sleep relatively easy. My fall cleanup and shovelling out is based on the distinction I draw between gardening, and housekeeping.
I have seen those properties that look as though every shred of organic debris has been blown, vacuumed up and disposed of weekly; anyone who has inadvertently turned a blower on themselves realize what an invasion they are. Every green leaf looks dusted; every surface has been swept, every shred or organic debris is bagged and removed. The stone is scrubbed clean, and the cushions are only on the furniture when company is in attendance. I like the look of cultivated soil as well as the next person, but all of the above is housekeeping, not gardening. Years ago a gardener whom I greatly respect, Marge Alpern, told me she disturbed her plants as little as possible. She maintained that plants can be worried such that they refuse to prosper. I think this is a point well taken. I will not take on the perennial gardens until much later in the fall.
A series of nights with temperatures hovering in the mid thirties left my pots looking like this-devastated. It does not matter one bit that I know this day is coming, I am never ready for it, nor do I like it. I do not like to let go. On a much more dramatic scale than the time changing to daylight savings, I adjust slowly, and poorly.
Coleus are astonishingly intolerant of cold weather. Anyone who does poorly with them is probably planting them out too early; every plant thrives in some conditions, and sulks in all else. This five foot diameter fiery orange ball was glorious all season; in late August the corgis were breaking off the branches encroaching on the doorway. They keep the extreme understory clear of any obstructions.
In what seemed like the blink of an eye my fireball shed almost every leaf. Unlike the gingko tree which sheds every leaf on that certain perfect fall day, leaving a beautiful pool of yellow on the ground, the coleus leaves dessicate, drop, and disappear before you can even mourn properly. 
My English-made Italian style pots were home to the biggest bouquet I have ever grown. The nicotiana mutabilis got busy throwing spikes in September, and the dahlias were blooming profusely. I like that extravagant and exuberant look. No matter how the day had gone, I could go home and congratulate myself on having grown one of the annual wonders of the western world. You may be laughing, but how the look of it pleased and cheered me. 
Though the nicotiana mutabilis is yet bravely defending its home, the cold pierced the heart of the whole. Buck is always amazed and amused and the depth and breadth of the despair which attends the beginning of the end of my gardening year. I alternately rage and whine-he murmurs, and pours the wine. 
This sister to my pots, adapted for use as a fountain, bears all the signs of a season’s worth of mineral laden water, weather,heat and growth. Does that gorgeous Italianate face not seem completely grief stricken? 