Gardening in Alberta
Alberta gardeners tackle some of Canada's most variable weather – Chinooks, late spring frosts, and dazzling summer days. Zone 3 dominates, with Zone 4 pockets in the south. Rich prairie soil rewards those who work with the climate.
Today's Tip for Calgary
AIMarch 2026 Planting Guide
Zone 3J
F
M
A
M
J
J
A
S
O
N
D
Growing
Shoulder
This month
| Task | March – Zone 3 |
|---|---|
| Start Indoors | Tomatoes, peppers (6-8 wks pre-frost) |
| Direct Sow | Spinach, radish in cold frame (Zone 6+) |
| Key Tasks | Prune dormant fruit trees |
Frost Dates – Calgary
🌸
Last Spring Frost
Mid May
🍂
First Fall Frost
Late September
Frost-free period: ~100 days. Always verify with Environment Canada forecasts — dates can vary ±2 weeks based on elevation and microclimate.
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