When to start seeds indoors
Indoor seed-start calendar from your last spring frost: start indoors, harden off, and transplant dates for tomatoes, peppers, brassicas, and more.
Pick a USDA zone in the app (or set My Garden frost dates) to turn these lead times into calendar dates for your yard.
Common indoor start lead times
| Crop | Typical lead time | Seeds |
|---|---|---|
| Onion | 10 weeks before last frost | Shop Seeds Now |
| Pepper | 8 weeks before last frost | Shop Seeds Now |
| Tomato | 6 weeks before last frost | Shop Seeds Now |
| Broccoli | 6 weeks before last frost | Shop Seeds Now |
| Basil | 5 weeks before last frost | Shop Seeds Now |
| Lettuce | 4 weeks before last frost | Shop Seeds Now |
| Cucumber | 3 weeks before last frost | Shop Seeds Now |
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