In society’s quest for all things bigger and brighter and newer, innovation rules. The traditional, the tried and the tested, the old stuff, tends to get thrown mercilessly on the scrap heap of history.
Not in my world it doesn’t. I’d hardly consider myself a Luddite, but I will admit having a thing for old stuff. I studied some history subjects at uni, live in an 80-year-old farmers cottage, grow mostly heirloom vegies, and have a growing collection of antique apple trees. For whatever reason, old stuff appeals to my sensibilities. I’m not into junk though – most of the items I welcome into my home or garden have to be either a classic in their field, useful or beautiful. That’s what works for me.
Gardening isn’t immune from this quest for the latest and greatest. Sometimes a new way of doing things is warranted, particularly if research shows that a traditional way of doing something was simply an old wives’ tale. There are occasions though when innovation is glorified for its own sake. I think we need reminding that in the pursuit of a healthy, productive garden, the old ways remain just as relevant to us as they were to our ancestors.
Over the last few years I’ve written about pleaching and coppicing, a couple of old gardening techniques that remain useful for modern gardeners. This time around I want to spend a couple of weeks on espalier. The reason for this special focus is that espalier is a technique that’s finding new relevance in contemporary, space constrained gardens.
Let’s kick things off with a definition. The word espalier (I pronounce it “espaylia” but some prefer “espaliay”) comes from the Italian word spalliera, which means “wainscot to lean the shoulder against” and literally refers to the trellis on which a plant is trained to grow.
The technique is thought to have originated with the Egyptians, but was perfected during the Middle Ages in France, where fruit trees were espaliered within walled gardens to save space, utilise radiant heat from the walls, and as with so many things French, create something that is both useful and beautiful.
Hundreds of different espalier forms have been created, but around a dozen or less are in common use. The craft has been applied mostly to fruiting trees, particularly apples and pears, but it’s applicable to any tree or shrub that has flexible branches and a relatively compact growth habit. Some popular ornamentals suited to espalier include magnolias, camellias and roses.
The benefits of espalier are many. The most obvious is that espaliered trees save space. When grafted on a dwarfing rootstock, an apple tree can be easily trained along a fence or driveway, taking up about as much room as a garden bench. If a bit more space is available, you could include a number of trees. My espalier orchard at Thistlebrook takes up just 50sqm, but includes 15 different apple varieties with the potential to supply fruit for cooking and fresh eating from December to July.
One of the trees, a ‘Lord Lambourne’ is producing fruit in less than two years, which is testament to the fact that espaliered trees tend to bear a good deal earlier than standard trees. They also bear more heavily, and have a longer productive lifespan. The reason for these traits is related to sap flow. Just as a bend in a pipe slows down the flow of water, a bend in a branch slows down the flow of sap. The more horizontal the angle of a branch, the less sap flows through it, reducing the formation of vegetative buds and increasing the production of fruiting buds. As a consequence, espaliered trees produce much higher yields per square metre than standard field grown trees.
Espalier contradicts the modernist adage, form follows function. With an espaliered fruit tree, form and function are inseparable. By creating an espalier, you are creating not just a highly productive plant, but a living sculpture, a testimony to the interaction between gardener and tree. You might choose to grow a series of espaliers as a Belgian fence, creating a productive barrier to keep the kids either in or out, depending on your needs. And if the fence fails to perform, you could try bribing them with a piece of fruit from a tree instead.
What I like most about espalier is that it’s a gentle art, not unlike bonsai in that it takes dedication, perseverance, knowledge and patience. Espalier bucks the trend. The process of training a tree to look beautiful, and become fruitful, is the best antidote to our society’s pathological addiction to speed.
Next week – practical espalier techniques for home gardens
First published in The Chronicle 20th February 2010. Photo by Justin Russell.