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You are here: Home / Dustin Bajer's Articles / Save Space, Create Microclimates, and Increase Yields with Espalier Fruit Trees

Save Space, Create Microclimates, and Increase Yields with Espalier Fruit Trees

January 10, 2017 by Dustin Bajer

A Leafy Wall of Fruit. Save Space, Increase Yields, and Extend the Growing Season with Espalier Fruit Trees

Espalier is the ancient practice of training plants – typically trees, shrubs, or vines – against a two-dimensional surface such as a wall or trellis. The result is a compact, two-dimensional plant that conserves space and produces consistent and easily managed fruit.

SketchUp model of espalier fruit trees trained along a fence in Edmonton, Alberta.

SketchUp model of espalier fruit trees trained along a fence in Edmonton, Alberta.

Space Saving

One of the most significant advantages of espalier fruit trees is that they conserve a tonne of space. A typical fruit tree with a 10-foot radius would have a footprint close to 314 square feet. The same espalier tree, trained to grow 10-feet on either side of its trunk would only occupy 20 square feet! Yes, espalier trees tend to be smaller, but this technique also allows you to fit multiple varieties in your yard while maintaining plenty of open space.

Training fruit trees along the fences of my backyard allowed me to plant more than a dozen different varieties in a 33 by 50-foot space.

More manageable
A grafted combination Spartan, Honeycrisp, and Fuji apple tree trained espalier along the West fence my yard in the Edmonton neighbourhood of McCauley.

A grafted combination Spartan, Honeycrisp, and Fuji apple tree trained espalier along the West fence of my yard. McCauley, Edmonton.

As one can imagine, picking a 2-dimensional fruit tree is quite easy –  working your way horizontally branch by branch. It’s also relatively easy to maintain the height of a trained tree so you can keep it as tall or as short as you’d like. With a clear view of all the fruit, harvesting the fruit from a well-trained tree takes minutes.

Increased Yield and Quality

Though a smaller espaliered fruit tree may produce less fruit overall, they will punch above its weight on average. Training branches to grow horizontally encourages fruiting spurs – especially on apple trees –  and the open-pruning structure ensures that fruit gets plenty of sunlight and ripens fully.

Beneficial Microclimates

In a cold climate like mine, the most significant advantage of training espalier fruit trees is that you can create microclimates by training plants against a South or West facing wall or fence. Sometimes the thermal mass of a wall will raise the temperature by a few degrees Celcius – this can be the difference between USDA growing zones. An article by Low Tech Magazine describes this effect beautifully in an article titles Fruit Wall: Farming in the 1600s.

By planting fruit trees close to a specially built wall with high thermal mass and southern exposure, a microclimate is created that allows the cultivation of Mediterranean fruits in temperate climates, such as those of Northern France, England, Belgium and the Netherlands.

The fruit wall reflects sunlight during the day, improving growing conditions. It also absorbs solar heat, which is slowly released during the night, preventing frost damage. Consequently, a warmer microclimate is created on the southern side of the wall for 24 hours per day.

Aesthetically Pleasing
An apple and pear tree espaliered against the South-side of a residential fence in the Edmonton neighbourhood of Forest Heights.

An apple and pear tree espaliered against the South-side of a residential fence in the Edmonton neighbourhood of Forest Heights.

Generally speaking, I’m not a very formal guy. I enjoy a right mess and have an extremely high tolerance for “natural” looking gardens. As a permaculture designer, I’m bias towards a “nature knows best approach”, but there’s something very appealing about growing a leafy wall of fruit.

Filed Under: Dustin Bajer's Articles Tagged With: Gardening, Migrated, Urban Agriculture

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  1. One Design For Three Urban Animals - Birds, Bugs, and Bats says:
    October 28, 2019 at 11:00 am

    […] – I plan on installing a few urban animal houses along my espalier fences. For visual consistency, I like the idea of each box referencing a common shape and style – […]

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Dustin Bajer

Teacher, permaculture designer, master gardener, hobby beekeeper, consultant, and network nerd living in Edmonton, Alberta, Canada. Read More

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