Ottawa's last spring frost date is May 6 and has a growing season of 151 days. Thunder Bay's season begins June 1 and has a growing season of 105 days.
A summary of which crops to plant early, and which ones not to plant until after your last spring frost date:
Very early spring (as soon as the ground can be worked)
- Onions
- peas
- spinach
Early spring
- lettuce
- beets
- carrots
- radishes
- dill
- cilantro
- cabbage
- broccoli
- celery
- kale
- potatoes
After last frost date
- beans
- corn
- melons
- cucumbers
- squash
- tomatoes
- peppers
- pumpkins
- eggplant
- basil
