Montreal, Quebec · CA
When to plant in Montreal
Station data · 86% confidence Continental, warm summer (Dfb)
Last spring frost
May 11
10% risk to May 28
First fall frost
Sep 30
10% risk from Sep 13
Frost-free days
142
1278 GDD (base 10°C)
The growing window at a glance
Frost-free growing season · 142 daysFrost risk (before May 11 / after Sep 30)
Planting calendar for Montreal
Sow, transplant and harvest windows for 30 crops, anchored to this location's frost dates. Tap any crop for its full guide.
CropJFMAMJJASOND
Beetcool season
Broccolicool season
Cabbagecool season
Carrotcool season
Cauliflowercool season
Cilantro / Coriandercool season
Garliccool season
Kalecool season
Leekcool season
Lettucecool season
Onioncool season
Peascool season
Potatocool season
Radishcool season
Spinachcool season
Swiss chardcool season
Turnipcool season
Basilwarm season
Bush (snap) beanwarm season
Cucumberwarm season
Eggplantwarm season
Melon (cantaloupe/watermelon)warm season
Okrawarm season
Pepper (sweet & chili)warm season
Pole beanwarm season
Summer squash / Zucchiniwarm season
Sweet cornwarm season
Sweet potatowarm season
Tomatowarm season
Winter squash / Pumpkinwarm season
Start indoorsTransplant outDirect sowHarvest
Frost dates are probabilities, not guarantees. Your garden's microclimate — slopes, walls, urban heat, cold pockets — can shift these dates by a week or more. Use them as a confident starting point, then watch your local forecast.
About the Continental, warm summer climate
Cold winters and warm summers; a dependable frost-bounded season for most temperate crops.
Nearby places
Similar climate (Continental, warm summer)
Also see frost dates for Montreal.