Toronto, Ontario
When to plant melon (cantaloupe/watermelon) in Toronto
Station data · 88% confidence warm seasontender to frost
- Direct sowlate MayMay 23 – Jun 13 · 88% conf.
- Harvestearly AugustAug 6 – Aug 31 · 79% conf.
- Start seeds indoorsmid AprilApr 18 – May 9 · 84% conf.
- Transplant outdoorslate MayMay 23 – Jun 13 · 88% conf.
The growing window at a glance
Melon (cantaloupe/watermelon) at a glance in Toronto
- Needs soil above 21°C to germinate well.
- Days to maturity: 75–100 days.
- Climate zone: Continental, warm summer (Dfb).
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.
Frequently asked
When can I sow melon (cantaloupe/watermelon) outdoors in Toronto?
Direct-sow around late May (May 23–Jun 13) in Toronto, based on its local frost dates. Confidence 88%.
When will melon (cantaloupe/watermelon) be ready to harvest in Toronto?
Expect to harvest from around early August (Aug 6–Aug 31) in Toronto, based on its local frost dates. Confidence 79%.
When should I start melon (cantaloupe/watermelon) seeds indoors in Toronto?
Start seeds indoors around mid April (Apr 18–May 9) in Toronto, based on its local frost dates. Confidence 84%.
When can I transplant melon (cantaloupe/watermelon) outdoors in Toronto?
Transplant outdoors around late May (May 23–Jun 13) in Toronto, based on its local frost dates. Confidence 88%.
How long is the growing season in Toronto?
Toronto has roughly 150 frost-free days, which is enough time to grow melon (cantaloupe/watermelon) to maturity outdoors.
Melon (cantaloupe/watermelon) in other places
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