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When to plant vegetables
Everything counts from your average last spring frost. Find yours on the state pages.
| Crop | Start indoors | Plant out |
|---|---|---|
| Beans | 3 weeks before last frost | 1 week after last frost |
| Broccoli | 10 weeks before last frost | 4 weeks before last frost |
| Brussels sprouts | 10 weeks before last frost | 4 weeks before last frost |
| Cabbage | 11 weeks before last frost | 5 weeks before last frost |
| Cauliflower | 8 weeks before last frost | 2 weeks before last frost |
| Sweet corn | 4 weeks before last frost | on the frost-free date last frost |
| Cucumbers | 2 weeks before last frost | 1 week after last frost |
| Kale | 11 weeks before last frost | 5 weeks before last frost |
| Leeks | 15 weeks before last frost | 5 weeks before last frost |
| Lettuce | 7 weeks before last frost | 2 weeks before last frost |
| Melons | 1 weeks before last frost | 2 weeks after last frost |
| Onions | 16 weeks before last frost | 6 weeks before last frost |
| Peas | 8 weeks before last frost | 4 weeks before last frost |
| Peppers | 6 weeks before last frost | 2 weeks after last frost |
| Squash | 1 weeks before last frost | 2 weeks after last frost |
| Tomatoes | 8 weeks before last frost | on the frost-free date last frost |
Source: Oregon State University Extension, "When to start seeds indoors". Cool-season crops (peas, lettuce, brassicas, onions) handle light frost. Warm-season crops (tomatoes, peppers, squash, melons, cucumbers, beans, corn) do not.