Growing Smarter: Trochu Arboretum Hosts Hands-On No-Dig Gardening Workshop
On May 4th, 2025, the Trochu Arboretum buzzed with energy as local gardening enthusiasts gathered for a hands-on workshop exploring the art and science of No-Dig Gardening. Held from 10 a.m. to 3:30 p.m., the event offered participants a deep dive into sustainable techniques that are transforming the way we garden in Alberta’s Zone 3 climate. Read to the end for some helpful links!
Building Better Beds, Naturally
The No-Dig Gardening workshop centered around three innovative raised bed methods: Hügelkultur, Lasagna Gardening, and Keyhole Beds. Each technique is grounded in permaculture principles and emphasizes low-maintenance, water-wise gardening that nurtures soil health over time.
“No-dig gardening isn’t just about saving your back,” says Facility Manager Carole Anne Holmstrom,. “It’s about mimicking nature to create healthy ecosystems that feed us and the earth.”
Why No-Dig Works
Participants learned how layering organic materials—such as food scraps, shredded paper, leaves, and straw—creates thriving garden beds without the need for tilling or synthetic fertilizers. These “lasagna-style” layers break down over time, enriching the soil with essential nutrients and microbial life.
“Greens” for your garden:
- Fruit & vegetable scraps
- Grass clippings and garden trimmings
- Coffee grounds, tea bags, and fresh leaves
“Browns” for healthy soil:
- Shredded paper and cardboard (no glossy finishes)
- Dry leaves and straw
- Manure and peat moss
This balance of nitrogen-rich greens and carbon-heavy browns forms the foundation of fertile, moisture-retentive soil.
Learning by Doing
Under bright prairie skies, attendees rolled up their sleeves and got their hands dirty—constructing beds on-site using local materials. Gardeners of all experience levels walked away with the skills to:
- Build raised beds with minimal effort
- Conserve water and reduce weeding
- Improve soil health year after year
Grow More, Work Less
In an era of rising food prices and increasing climate uncertainty, no-dig garden beds offer a resilient solution for backyard growers. These systems require less irrigation, suppress weeds naturally, and support beneficial soil life—all while producing impressive yields.
Ready to Try It Yourself?
Whether you’re starting a small backyard garden or growing food for a whole community, no-dig raised beds are adaptable, affordable, and regenerative.
Get started with these helpful links:
- What Is Hügelkultur? Building the Ultimate Raised Bed
- Lasagna Gardening Basics by Mother Earth News
- What Exactly Is A Keyhole Garden Anyway?
Stay tuned for more garden education events hosted at the Trochu Arboretum, where the spirit of sustainability and community continues to bloom.







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