Archive for the ‘Trees of Note’ Category

Small Spaces

 

The dowager queen French vase from yesterday’s post has a home waiting for her-but not the home I expected.  An object of this size would need an even bigger space, wouldn’t you think?  What evolved was anything but.    

My clients bought a house that had never really been finished.  The landscape was much the same; unfinished.  My client referred to the property on the side of the house as “the music room mulch garden”.  It was bleak.  This very small space functioned as a transition space between the front of the property, and the rear-a sheer 8′ foot drop in grade. A boulder retaining wall at grade barely visible in this picture was punctuated by a staircase down with 16 stone steps-maybe more.  This left the area with an edge that was in fact a precipice.  At the base of the precipice, multiple air conditioning units, and a collection of meters apparent in this picture.     

My first design, they flat out rejected; I had missed some important information. My first design did not take into account that they spent their summers at a home on the East Coast.  OK, my plan for a cutting garden and whatever went with that was way off the mark.  Plan 2-a landscape that would function and look beautiful early and late, and especially over the winter.  A small landscaped area that would have big impact. A healthy hedge of Thuja Nigra sporting one lone out of place Thuja Pyramidalis was a starting point.  

Three linden espaliers of great age would form a backdrop to this small garden.  The green wall they would provide would take up little space, and would screen the clunky boulders and grade changes from view.  Enclosing a small space makes for a feeling of intimacy.  And the room would need some furnishing.  

Three linden espaliers, each about 10 feet wide, completely covered the back.  It would be up to my client to decide whether to maintain the horizontal pattern of the branches, or let the the twiggy growth make a solid wall of leaves. Green velvet boxwood organizes the ground plane.  The precipitous drop to the rear yard is shielded from view by a hedge of Thuja Nigra that matched the hedge already in place on the street side.  Flat and safe spaces are friendly to people. As for the mulch pile we had scraped up-that would be used to mulch the new plantings.  

Decomposed granite walkways make it easy to navigate the space. The color is easy on the eye, but provides strong contrast to the green elements.  There is no reason a small space cannot be a lively and interesting space.

A simple arrangement of plant material and gravel finishes the landscaping portion of the project.  Now what? 

From inside the house, a generously proportioned bench makes the space look inviting. The placement of the bench implies there will be something of interest to see.  I thought that old French vase might be just the thing.  

The colors of each compliment one another. The placement of a large element in a small space can be dramatic.


The view from the bench side is in scale with the size of the house.   Should I plant very tall? Short and wide? With what? It will take some time and thought to get the planting just right.

Some Thoughts on Spacing

Once there is a landscape plan in place, there is the matter of the plant count.  Determining a plant count has much to do with spacing.  I have read much about rules for spacing plants properly for optimal growth, but the issue is more complex than that.  For instance, if I am planting pachysandra, and space them at a foot apart, I need one plant per square foot.  For 500 square feet, I will need 500 plants, or about 10 48 count flats.  If I space them at 6″ apart, I need 4 plants per square foot, or 2000 plants, or about 40 48 count flats.  Option A asks for a modest up front investment, but I see a lot of time ahead devoted to weeding, the purchase and spreading of a lot of mulch, and a lot of water thrown on bare ground.  I also see a grim looking space for probably 3 years.  My solution?  Start a groundcover bed small and plant densely.   Enlarge it next year, or the following season- only that number of square feet you can plant densely.  My mature, healthy beds of pachysandra-individual plants are much less than an inch apart.

Spacing evergreens has everything to do with the desired outcome.  Should I plant a taxus densiformis in the middle of the lawn, and give it 50 years to grow, I will have a single plant of considerable size.  A hedge, or a mass of yews is more about a community. Sometimes I look at the distance between the rootballs.  The big idea here-everybody has their own subterranean digs. This may mean that the foliage touches.   

Plants are much more sociable than I.  I want my space. I was never so conscious of the need for my own space than after my knee replacement.  I was less than stable on my feet, and was not interested in an enthusiastic Golden Retriever broaching my borders. But plenty of plants do well planted in close quarters.  They are completely happy to relinquish their individuality, and become a part of a larger community.

One of my most favorite landscape moments-the arrival of the plants.  These 1.5″ caliper fastigiate hornbeams in 25 gallon pots would be planted as if they were the poles of a pergola. Carpinus betulus “Frans Fontaine” is a culitvar of fastigiate hornbeam which is slower and more densely growing than the species.  Even so, it will grow 30′-35′ tall, and 15′-18′ wide. I spaced them at 8′ on center, knowing they would grow together.  Someday there would be a green roof under which there would be shade.   

I had other reasons which influenced my spacing.  The house next door loomed over this side yard property.  Evergreens would have provided year round screening, but they occupy a lot of space at the ground plane.  My clients wanted to entertain in this space.  Given enough time, and spaced close together, they would eliminate this view of the neighbor.   

Carpinus are also very tolerant of pruning.  Decisions about spacing are specific to the species in question.  The vast majority of green spaces have not been planted by a person.  There are those wild places densely populated by plants.  No natural forest or meadow is at equilibrium; some plants are coming on as others are in eclipse.  Perhaps a lighting strike will “prune” a giant tree such that new plants can take hold around it.  Should you be interested in the exceptions to any gardening rule, visit any wild and untended space. 

Five years later, the new yews have grown together to make a mass.  The topmost row of yews had been transplanted from the front of the house; the new yews will eventually cover their bare lower limbs.  It sometimes makes more sense to underplant an old and ungainly shrub rather than tear it out.  These big old yews will eventually become part of a simple mass.Eight years later, the house next door has all but disappeared. As the carpinus grow taller, they can be selectively pruned on the underside to permit easy passage beneath them. 


The yews planted behind the carpinus are planted on a gentle slope that rises to the neighboring driveway. Though the shade has become considerable, they are green and well needled from top to bottom.  Allowing those densiformis yews to keep their natural shape is in large part responsible for their continuing health.  Yews do not respond so well to hard formal pruning.  Once all light is blocked to the interior of the shrub by a proliferation of growth on the exterior, those inner branches will go bare.  I have begun planting Taxus media Moonii in place of Hicks yews, as their natural growth is much more upright and formal. 


This is a great spot to sit.

At A Glance: The Venus Dogwood

I was  fortunate to hear recently from Wolfgang Eberts in Germany; he apparently read my previous posts on the Venus Dogwood.  He tells me that this fabulous dogwood has proved to be very popular in Europe.  He accompanied Elwin Orton, the hybridizer of Venus, to the Chelsea Flower Show, where it took a well-deserved gold medal.  Wolfgang is a plantsman, and an European distributor of Venus.  His  nursery also sells other fine plants, including bamboo.  What fun to hear from him.  All of the pictures are courtesy of Wolfgang Eberts.

Wolfgang Eberts

from left to right; Wolfgang Eberts, Elwin Orton, hybridizer of Venus from Rutgers University, and Hugh Johnson-taken at Chelsea

trade show display of Wolfgang’s nursery about Venus


trade show booth

detail, Venus flower


fall color


Venus dogwood does not set much fruit here, but when it does, it is spectacular.  For more information on Wolfgang Eberts, try www.cornus-venus.com, and www.bambus.de.  What a pleasure it was for me to hear from him.

Stature

 


Stature is a concept everyone understands. Any human being 6.5 feet tall gets attention-just for being heads and shoulders above the rest of us.  A physical presence makes an unmistakeable impression.  Alan Armitage has made a life’s work of studying plants.  His shoulders-a whole body of work about what plants work, and what plants a gardener might consider passing by.  His head-he writes and speaks intelligently and passionately about that human activity close to those shoulders-gardening.  You may agree or not with him, but he has stature such that any serious gardener would give pause, and consider what he has to say.

Anyone of stature has the power to give pause. That the modern world is geared towards everything running at top speed, anything that slows me down has stature.  True stature has to do with size, persistence, experience, and longevity. Trees do a good job of filling that bill. They are very large plants. I have read that the standing weight of a 26″ diameter hardwood is 4.2 tons; a mature oak tree will have close to a quarter million leaves.  Some trees live a thousand years.  Others grow to towering heights.  Some grow in wild places never having had any care, and endure. 


 This columnar beech is almost 30 feet tall, and has been growing at a tree farm a good many years.  GP Enterprises sells and transplants big trees.  This is a very specialized part of the landscape industry, as the cost of the equipment which which moves those trees safely and successfully is astronomical to buy, operate and maintain.  Not everyone needs a tree of great size, but sometimes the stature they confer on a landscape makes a lot of other work unnecessary.  What a person might spend on shrubs or perennials over the years can come to a lot more than the cost of one large tree.

Any tree has stature potential; small trees are reasonable to purchase and take hold much faster than a specimen sized tree.  That said, the most difficult part of adding young trees to a landscape is the placement.  No one wants the expense of taking down a very large tree planted too close to their house, or their sidewalk.  A properly placed large growing shade tree can look lonely before it grows into its own. These 4 inch caliper Bowhall maples pictured above will eventually tower over the ground plane.  Planted at the corners of a 12 by 12 or 15 by 15 foot space, you will have a maple tent in not so many years.  Plant 8 or 12 trees, a  pergola big enough to entertain in.  You can see the potential for a landscape feature with stature in this picture.

Columnar carpinus has a natural growth habit that reminds me of an egg with a softly rounded top.  Columnar trees do not co-opt all the available sun, and they do a great job of screening out an untoward view.  Maturing at 40 feet tall, and 30 feet wide, they have an elegant form that appeals to me.
This older multi-trunked Amur maple has an entirely different look than the carpinus.  The carpinus I would call architectural, and imposing-the Amur maple is graceful and lovely.  This insouciant amur maple meadow is as visually successful as a formal landscape-just different.  The choice of a tree or trees can influence the atmosphere of a space. 

 
Ralph Plummer owns GP Enterprises, and though he landscapes, builds retaining walls, engineers drainage and grading, he has made a life’s work of moving and planting big trees. Even if he were not 6′ 6″ tall, he would still be a person of great stature.