Ailanthus

Radical Ruminations

Poised on the brink of another spring — and retirement! — I’m considering the options for renovating my garden. As I’ve lamented in a number of posts, the back garden is dominated by two mature Norway maples and a Tree of Heaven (Ailanthus). The entire space (about 30 x 50 feet) has been infiltrated with a solid mat of maple roots, which makes it difficult to grow any but the toughest plants, especially in soil that is mostly sand, and in a summer-dry climate.

 

The Norway maples. Imagine the roots!

The Norway maples. Imagine the roots!

 

The Tree of Heaven. The huge red maple on the right is on a neighbour's property.

The Tree of Heaven. The huge red maple on the right is on a neighbour’s property.

More than once, I have decided to have the trees removed — all three of them. That would open up the sky above the garden and get rid of the roots (eventually). I could grow plants well that barely perform now — peonies, roses, delphiniums, irises! The water lilies in the pond would actually bloom!

Then I think about the disruption. A vigorous climbing rose (white flowers with a pink tinge, very double, in May and June) has slung itself over the lowest limbs of one of the maples. It would have either to be cut down or provided with some other support. Men with size 12 feet would tromp all over the place and there would be all that wood to deal with.

Climbing rose in maple

Climbing rose in maple

Then there’s the expense. Tree removal is not cheap, and I am about to swap money for time.

So I come around to leaving the trees alone and working on the plantings that share space with them. Here, I have a few options:

  1. Remake the Beds. This means digging up the plants I value and stashing them somewhere while I dig out the surface roots and amend the soil with compost and other goodies. Then replant, adding new plants suitable for dry shade. Advantage: the plants will grow quite well for a while. Disadvantages: Back-breaking labour, and the effect would be temporary; in a few years the tree roots will re-grow.
  2. Adjust the Beds. Identify attractive (to me) plants that actually thrive under the present conditions. Get rid of all the sad sacks and weedy specimens and add more of these superstars — mainly hellebores and ferns with spring-blooming bulbs. Fussier things (delphiniums and lilies) could be grown in pots and parachuted in for blobs of colour in season.
  3. Keep the Status Quo. The trouble is, in gardens, there’s no such thing as status quo. Succession kicks in, some plants die, others prosper and in a few years it’s all rose campion, purple toadflax and feverfew jostling around the original hellebores. And yet, even a mess like that can look amazingly good in the slanting light of a summer evening, as long as the bed is defined by edging and trimming.

In the short term, i.e., the next year or two, I think I’ll go with a combination of options 1 and 2. The first thing will be to make the 18-inch tall wooden dog fence along the front of this area taller (by adding 3-foot pickets at 8 to 10-inch intervals) and installing a gate between the two sections of fence. That will make it possible to remove the goofy wire fence around the edge of the circular lawn. Aesthetics apart, that fence makes working in those beds way too hard.

Dog fences.

Dog fences.

The next step will be to identify the plants that do well here already, both “quality” and “weedy” types. Undesirables and struggling specimens will be removed and selected areas dug over and replanted. (Of course all these labours will be performed by me, but somehow I can’t quite bring myself to say “I will remove, dig, replant, etc.”)

I keep reminding myself I will have ten extra hours most days of the week in which to accomplish this stuff. One way or another, the place will look like this again. Or better.

The Back Garden, May 2010

The Ex-Veg Patch

I used to have a vegetable garden. It occupied a space of about 15 by 25 feet across the path from two perennial beds. It was (and for that matter, still is) laid out in a pattern of diagonally bisected squares I had copied after reading an article about Rosemary Verey’s garden in England. (By the way, the triangular beds that result from this are the devil to dig and plant).

There is an apple tree (Yellow Transparent) almost but not quite in the centre of the back part of the patch. It’s surrounded by different kinds of mint, with a solitary clump of fennel to one side.  A triangle in the middle of the layout is occupied by plants of lavender, hyssop and thyme. Others host rue, oregano, echinacea and more mint, while one triangle is given over to a couple of rhubarb plants. Vegetables (tomatoes, spinach, chard, lettuce and peas) used to grow in the space that remained.

After a few years, I noticed that the tomato plants were smaller every year, and less productive. The soil was always dry. The obvious reason was the two Norway maples 20 feet to the west of the veg patch, and the Ailanthus (“Tree of Heaven”) to the north. These tough, pushy trees were sending roots into the patch and hogging the water and nutrients.

The obvious cure for this unhappy situation was removal of one or all of the trees. Tree removal, however, is costly and disruptive. The trees are still there and the vegetable patch is now the ex-vegetable patch. Self-sown quasi-weeds (campion, toadflax, echinops and mulleins) have moved in, along with plants I’ve moved there for lack of better places, such as spare echinaceas and a big mauve dahlia whose old spot had become inhospitable. I’ve also parked some potted delphiniums and lilies near the feeble (but intensely fragrant) rose “Fragrant Cloud,” which also lives in a pot.

Right now, despite the drought and possibly because of the hot summer, the ex-veg patch looks pretty good.

Potted Delphinium and potted "Stargazer" lily

Potted Delphinium and potted “Stargazer” lily

Transplanted mauve Dahlia and self-sown Echinops.

Transplanted mauve Dahlia and self-sown Echinops.

Second set of blooms on rose "Fragrant Cloud" and new growth on potted Delphinium.

Second set of blooms on rose “Fragrant Cloud” and new growth on potted Delphinium.

The Ex-Vegetable Patch today

The Ex-Vegetable Patch today

What about vegetables, you ask? Well, there are four potted tomatoes, along with all the other stuff. (Of course, tomatoes are technically fruits, but that’s OK).