🌍 Soil & Garden Care Guides
Build healthy soil and keep your garden thriving all season long.
Canadian soils vary widely — from the heavy clay common in southern Ontario and the Fraser Valley, to the sandy loam of the Prairies, to the acidic soils of the Maritimes. The freeze-thaw cycle that runs from October through April also does things to soil structure that gardeners in warmer climates never deal with: compaction, heaving, nutrient leaching through snowmelt.
The guides below cover the core soil and care skills for Canadian vegetable gardens — improving soil structure, feeding crops through the season, managing water through summer heat, and dealing with pests without chemical inputs. Start with soil preparation if you are building a new bed, or the fertilizer guide if your plants are struggling mid-season.
Common Questions
How do I improve clay soil in a Canadian vegetable garden?
Add 3-4 inches of compost worked into the top 8-10 inches each spring. Gypsum (calcium sulfate) helps break up clay structure without changing pH. Never work clay soil when it is wet — it compacts severely. For very heavy clay, a raised bed with a custom soil mix is the fastest solution. See the full soil preparation guide.
How often should I fertilize vegetables in Canada?
Heavy feeders — tomatoes, peppers, cucumbers, zucchini — benefit from feeding every 3-4 weeks through the growing season. Light feeders like carrots, beans, and lettuce need only one or two applications. A slow-release granular fertilizer at planting followed by liquid feed mid-season covers most Canadian gardens well.
When should I apply mulch in Canada?
Wait until the soil has warmed — late May or early June across most of Canada. Applying mulch too early in spring insulates cold soil and delays the warming your plants need. A 2-3 inch layer of straw, wood chips, or shredded leaves then suppresses weeds and retains moisture through the hot July-August period.