Match crop maturity to growing season length. Frost-date pages show median, short-year (10%), and long-year (90%) growing season lengths.
Frost Dates & Planting Timing
How long is the growing season in my county?
Growing season length (days between last spring 28°F frost and first fall 28°F frost) ranges from under 90 days in the Northern Rockies to over 300 days in South Florida. Median growing season for your specific county shows on the frost-date page.
More from Frost Dates & Planting Timing
- When is the last frost date in my area?
- What is the difference between a hardiness zone and a frost date?
- What does 50% frost probability mean?
- When is it safe to plant tomatoes outside?
- How do I use frost probability tables for planting decisions?
- What is a killing frost vs. a light frost?
- Can I plant earlier using row cover?
- How do I protect plants from a late spring frost?
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