Soil Temperature (°F) |
|||||||||
Vegetable |
32 |
41 |
50 |
59 |
68 |
77 |
86 |
95 |
104 |
| Asparagus | ¹NG | NG | 53 | 24 | 15 | 10 | 12 | 20 | 28 |
| Lima Bean | ² - | - | NG | 31 | 18 | 7 | 7 | ng | - |
| Snap Bean | NG | NG | NG | 16 | 11 | 8 | 6 | 6 | NG |
| Beet | - | 42 | 17 | 10 | 6 | 5 | 5 | 5 | - |
| Cabbage | - | - | 15 | 9 | 6 | 5 | 4 | - | - |
| Carrot | NG | 51 | 17 | 10 | 7 | 6 | 5 | 9 | NG |
| Cauliflower | - | - | 20 | 10 | 6 | 8 | 8 | - | - |
| Celery | NG | 41 | 16 | 12 | 7 | NG | NG | NG | - |
| Sweet Corn | NG | NG | 22 | 12 | 7 | 4 | 4 | 3 | NG |
| Cucumber | NG | NG | NG | 13 | 6 | 4 | 3 | 3 | - |
| Eggplant | - | - | - | - | 13 | 8 | 5 | - | - |
| Lettuce | 49 | 15 | 7 | 4 | 3 | 2 | 3 | NG | NG |
| Muskmelon | - | - | - | - | 8 | 4 | 3 | - | - |
| Okra | NG | NF | NF | 27 | 17 | 13 | 7 | 6 | 7 |
| Onion | 136 | 31 | 13 | 7 | 5 | 4 | 4 | 13 | NG |
| Parsley | - | - | 29 | 17 | 14 | 13 | 12 | - | - |
| Parsnip | 172 | 57 | 27 | 19 | 14 | 15 | 32 | NG | NG |
| Pea | - | 36 | 14 | 9 | 8 | 6 | 6 | - | - |
| Pepper | NG | NG | NG | 25 | 13 | 8 | 8 | 9 | NG |
| Radish | NG | 29 | 11 | 6 | 4 | 4 | 3 | - | - |
| Spinach | 63 | 23 | 12 | 7 | 6 | 5 | 6 | NG | NG |
| Tomato | NG | NG | 43 | 14 | 8 | 6 | 6 | 9 | NG |
| Turnip | NG | NG | 5 | 3 | 2 | 1 | 1 | 1 | 3 |
| Watermelon | - | NG | - | - | 12 | 5 | 4 | 3 | - |
¹ No Germination
² Not Tested
Back toVegetable Seed Germination and Soil Temperatures Article
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Last Revised April 6, 2000.
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