Frost Date Planting Calculator
Calculate safe planting dates based on your last frost date.
Plan when to start seeds indoors and transplant outdoors.
Planting Schedule
Frost dates are the key to planning your garden. The last spring frost tells you when it is safe to plant outdoors.
General planting guidelines based on last frost date:
- 8 weeks before: Start warm-season seeds indoors (tomatoes, peppers)
- 6 weeks before: Start cool-season seeds indoors (broccoli, cabbage)
- 4 weeks before: Direct sow cool-season crops outdoors (peas, lettuce)
- 2 weeks before: Transplant cold-hardy seedlings outdoors
- On frost date: Last expected frost — still risky for tender plants
- 2 weeks after: Safe to transplant warm-season crops
- 4 weeks after: Plant heat-loving crops (melons, squash)
Growing season length = days between last spring frost and first fall frost. A longer growing season allows more crop variety.