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We chat with Ryan Cullen, the field supervisor at Durham College, about the newly planted food-forest garden at the college’s Whitby campus. Cullen explains that the idea behind the food forest is to grow a mix of food-producing species, layered in the same way that a forest is. There’s a herbaceous layer at ground level, a shrub layer, and a canopy layer of trees above. With time, the food forest becomes self-maintaining and, with the appropriate mix of plant species, can have self-renewing fertility. The top layer of the food-forest garden is the “canopy” layer. Cullen says that they planted this layer with fruiting tree species including cherries, plums, persimmon—and even a hawthorn.The lower herbaceous and shrub layers, which are still being developed, will be a polyculture—a mix of different plants. Along with edible properties, plants in the lower layers might make available soil nutrients (deep-rooted plants bring up nutrients,) supply nutrients (pea shrubs capture nitrogen from the air,) and attract pollinator species.Lower-layer plants include bee balm, chamomile, rosa rugosa (for rose hips), strawberreis, and blueberries. Cullen says that this list will grow, as there is still a lot of planting to do in this layer.
We chat with Ryan Cullen, the field supervisor at Durham College, about the newly planted food-forest garden at the college’s Whitby campus.
Cullen explains that the idea behind the food forest is to grow a mix of food-producing species, layered in the same way that a forest is. There’s a herbaceous layer at ground level, a shrub layer, and a canopy layer of trees above. With time, the food forest becomes self-maintaining and, with the appropriate mix of plant species, can have self-renewing fertility.
The top layer of the food-forest garden is the “canopy” layer. Cullen says that they planted this layer with fruiting tree species including cherries, plums, persimmon—and even a hawthorn.
The lower herbaceous and shrub layers, which are still being developed, will be a polyculture—a mix of different plants. Along with edible properties, plants in the lower layers might make available soil nutrients (deep-rooted plants bring up nutrients,) supply nutrients (pea shrubs capture nitrogen from the air,) and attract pollinator species.
Lower-layer plants include bee balm, chamomile, rosa rugosa (for rose hips), strawberreis, and blueberries. Cullen says that this list will grow, as there is still a lot of planting to do in this layer.
Want to grow your own food but need creative ideas so you can get the most from your space and your growing zone? Our passion is the edible garden.
We help people grow food on balconies, in backyards, and beyond—whether it’s edible landscaping, a vegetable garden, container gardens, or a home orchard.
There are many ways to approach edible landscaping. Find out how to harvest enough fruit, vegetables, herbs, and edible flowers. Get top tips for exotic crops. And learn how to garden in a way that suits any situation.
Host Steven Biggs was recognized by Garden Making magazine as one of the “green gang” making a difference in Canadian horticulture. His home-garden experiments span driveway straw-bale gardens, a rooftop kitchen garden, fruit plantings, and an edible-themed front yard. He's a horticulturist, award-winning broadcaster and author, and former horticulture instructor with George Brown and Durham Colleges in Ontario, Canada.
Get started with one of our fan favourites. Season 6, Episode 10: Big Harvests from a Small Space with a Vertical Vegetable Garden.