
The secret to a productive vegetable garden lies in the precision of your planting schedule. For Quebec gardeners, especially in hardiness zones 3, 4, and 5, every week counts. Get a head start on the season by planning your seeds according to expert recommendations and recognized production standards.
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Explore our full selection of high-quality seeds and all the equipment you need to succeed this season.
Recommended Reading: Seeding season is back and The Seeding Adventure.
Success in 3 Key Steps
- Identify your last frost date: Consult this Climate Atlas interactive map to find the exact last spring frost date for your municipality.
- Use the right soil: Choose a sterile seed-starting mix. Standard garden soil is too compact and increases the risk of fungal diseases like damping-off.
- Choose the right container: Plants with fragile roots (squash, cucumbers, milkweed) benefit from being sown in peat pots, which can be planted directly into the ground to avoid root shock.

Production Calendar: Vegetables
Respecting these periods and container types ensures optimal growth and successful transplanting in June.
| Variety | Indoor Seeding | Germination | Suggested Container | Transplanting |
|---|---|---|---|---|
| Eggplant, Ground Cherry | Mid-March | 8-15 days | Tray or Pot | Early June |
| Celery | Early March | 15-20 days | Tray | June |
| Cauliflower, Broccoli, Kale | Early April | 5-10 days | Tray or Pot | Mid-May / June |
| Squash, Pumpkin, Melon | Early May | 5-10 days | Peat Pot | Early June |
| Cucumber | Mid-May | 5-10 days | Peat Pot | Early June |
| Lettuce (early harvest) | Mid-April | 5-10 days | Tray | Mid-May |
| Onion and Leek | Late Feb. / Early March | 10-15 days | Tray | Mid-May |
| Pepper | Early March | 10-15 days | Tray or Pot | Early June |
| Tomato (all types) | Late March / Early April | 5-10 days | Tray or Pot | Early June |

Herbs: A Complete Aromatic Garden
| Variety | Seeding | Germination | Suggested Container |
|---|---|---|---|
| Rosemary, Mint | February | 15-25 days | Tray |
| Sage, Thyme, Stevia | Mid-March | 10-15 days | Tray or Pot |
| Lemongrass | March | 14-21 days | Individual Pot |
| Chives, Parsley | Early April | 10-20 days | Tray |
| Basil, Oregano | Mid-April | 5-10 days | Tray or Pot |
| Coriander, Dill | May / June | 7-10 days | Direct Outdoor Sowing |
Flowers: Colours and Pollinators
| Variety | Indoor Seeding | Germination | Suggested Container |
|---|---|---|---|
| Begonia, Geranium | Jan. / Feb. | 5-20 days | Tray |
| Milkweed | February | 15-20 days | Peat Pot |
| Petunia, Lobelia | March | 7-12 days | Tray |
| Dahlia and Zinnia | Early April | 5-10 days | Tray or Pot |
| Cosmos and Marigold | Late April | 5-10 days | Tray or Pot |
| Sunflower | May | 6-10 days | Peat Pot (or Direct) |
Need Personalized Advice?
Every region in Quebec has its own unique characteristics. For advice tailored to your soil and microclimate, visit our experts in-store! Our passionate merchants will be happy to guide you in choosing your seeds and starting equipment.
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The Final Step: Hardening Off
One week before planting, gradually acclimatize your plants to outdoor conditions. Place them in the shade for a few hours a day, then gradually increase exposure to sun and wind. This hardening process is essential to ensure your plants thrive after transplanting.