Every crop, and when its window opens.
Frostline knows 29 common vegetables and herbs. Each is timed in weeks off your frost dates, not a fixed calendar, so the plan moves with your climate.
Crops
| Crop | Frost tolerance | Days to maturity | Spring | Fall |
|---|---|---|---|---|
| Tomato | Very tender | 55 to 80 | start indoors ~7 wk before last frost | — |
| Pepper | Very tender | 60 to 90 | start indoors ~8 wk before last frost | — |
| Eggplant | Very tender | 60 to 80 | start indoors ~8 wk before last frost | — |
| Basil | Tender | 60 to 75 | sow ~1 wk after last frost | — |
| Bush bean | Tender | 50 to 60 | sow ~1 wk after last frost | sow ~11 wk before first frost |
| Summer squash | Tender | 50 to 60 | sow ~1 wk after last frost | sow ~10 wk before first frost |
| Cucumber | Tender | 55 to 70 | sow ~1 wk after last frost | sow ~10 wk before first frost |
| Pumpkin | Very tender | 90 to 120 | sow ~2 wk after last frost | — |
| Sweet corn | Tender | 60 to 100 | sow ~1 wk after last frost | — |
| Okra | Very tender | 50 to 65 | sow ~2 wk after last frost | — |
| Lettuce | Half-hardy | 45 to 60 | sow ~3 wk before last frost | sow ~9 wk before first frost |
| Spinach | Hardy | 40 to 55 | sow ~5 wk before last frost | sow ~7 wk before first frost |
| Kale | Hardy | 50 to 75 | sow ~5 wk before last frost | sow ~9 wk before first frost |
| Swiss chard | Half-hardy | 55 to 65 | sow ~3 wk before last frost | sow ~10 wk before first frost |
| Peas | Hardy | 55 to 70 | sow ~5 wk before last frost | sow ~11 wk before first frost |
| Carrot | Half-hardy | 60 to 80 | sow ~3 wk before last frost | sow ~11 wk before first frost |
| Radish | Half-hardy | 25 to 40 | sow ~3 wk before last frost | sow ~5 wk before first frost |
| Beet | Half-hardy | 50 to 70 | sow ~3 wk before last frost | sow ~10 wk before first frost |
| Turnip | Hardy | 45 to 70 | sow ~3 wk before last frost | sow ~9 wk before first frost |
| Garlic | Hardy | 240 to 270 | — | plant cloves ~4 wk before first frost |
| Onion | Hardy | 90 to 110 | start indoors ~9 wk before last frost | — |
| Broccoli | Hardy | 55 to 70 | start indoors ~6 wk before last frost | sow ~11 wk before first frost |
| Cabbage | Hardy | 60 to 90 | start indoors ~6 wk before last frost | sow ~11 wk before first frost |
| Cauliflower | Half-hardy | 55 to 80 | start indoors ~6 wk before last frost | sow ~11 wk before first frost |
| Cilantro | Half-hardy | 50 to 65 | sow ~3 wk before last frost | sow ~7 wk before first frost |
| Dill | Half-hardy | 60 to 70 | sow around last frost | sow ~9 wk before first frost |
| Parsley | Hardy | 70 to 90 | sow ~3 wk before last frost | — |
| Arugula | Hardy | 30 to 40 | sow ~3 wk before last frost | sow ~5 wk before first frost |
| Mustard greens | Hardy | 30 to 45 | sow ~3 wk before last frost | sow ~7 wk before first frost |
Sources: USDA Plant Hardiness Zone framework; NOAA NCEI freeze and frost date normals; USDA and US land-grant cooperative extension planting calendars (frost tolerance, days to maturity, sow windows relative to the last spring and first fall frost). These are facts compiled into our own dataset. See the data sources page.
Your frost dates
Frostline predicts two dates for your spot: the average last spring frost and the average first fall frost. Every crop above is timed in weeks before or after those two dates. Get yours on the planner, or read how the prediction works.