Results of an experiment to see correlations between various vegetable seeds number of days to sprout appearance and the temperature at which they are kept.
Crop | Minimum | Optimum Range | Optimum | Maximum |
---|---|---|---|---|
Asparagus | 50 | 60 - 85 | 75 | 95 |
Bean | 60 | 60 - 85 | 80 | 95 |
Beet | 40 | 50 - 85 | 85 | 95 |
Cabbage | 40 | 45 - 95 | 85 | 100 |
Carrot | 40 | 45 - 85 | 80 | 95 |
Cauliflower | 40 | 45 - 85 | 80 | 100 |
Chard, Swiss | 40 | 50 - 85 | 85 | 95 |
Corn | 50 | 60 - 95 | 95 | 105 |
Cucumber | 60 | 60 - 95 | 95 | 105 |
Eggplant | 60 | 75 - 90 | 85 | 95 |
Lettuce | 35 | 40 - 80 | 75 | 95 |
Muskmelon | 60 | 75 - 95 | 90 | 100 |
Onion | 35 | 50 - 95 | 75 | 95 |
Parsley | 40 | 50 - 85 | 75 | 90 |
Parsnip | 35 | 50 - 70 | 65 | 85 |
Pea | 40 | 40 -75 | 75 | 85 |
Pepper | 60 | 65 - 95 | 85 | 95 |
Pumpkin | 60 | 70 - 90 | 95 | 100 |
Radish | 40 | 45 - 90 | 85 | 95 |
Spinach | 35 | 45 - 75 | 70 | 85 |
Squash | 60 | 70 - 95 | 95 | 100 |
Tomato | 50 | 60 - 85 | 85 | 95 |
Turnip | 40 | 60 - 105 | 85 | 105 |
Watermelon | 60 | 70 - 95 | 95 | 105 |
Crop | 32 | 41 | 50 | 59 | 68 | 77 | 86 | 95 | 104 |
---|---|---|---|---|---|---|---|---|---|
Asparagus | little or no germination | little or no germination | 53 | 24 | 15 | 10 | 11 | 19 | 28 |
Bean | little or no germination | little or no germination | little or no germination | 16 | 11 | 8 | 6 | 6 | little or no germination |
Beet | not tested | 42 | 17 | 10 | 6 | 5 | 4 | 4 | not tested |
Cabbage | not tested | not tested | 15 | 9 | 6 | 4 | 3 | not tested | not tested |
Carrot | little or no germination | 51 | 17 | 10 | 7 | 6 | 6 | 8 | little or no germination |
Cauliflower | not tested | not tested | 19 | 10 | 6 | 5 | 4 | not tested | not tested |
Corn | little or no germination | little or no germination | 22 | 12 | 7 | 4 | 4 | 3 | little or no germination |
Cucumber | little or no germination | little or no germination | little or no germination | 13 | 6 | 4 | 3 | 3 | not tested |
Eggplant | not tested | not tested | not tested | 13 | 8 | 5 | not tested | not tested | not tested |
Lettuce | 49 | 15 | 7 | 4 | 3 | 2 | 2 | little or no germination | little or no germination |
Muskmelon | not tested | not tested | not tested | not tested | 8 | 4 | 3 | not tested | not tested |
Onion | 135 | 31 | 13 | 7 | 5 | 4 | 4 | 12 | little or no germination |
Parsley | not tested | not tested | 29 | 17 | 14 | 13 | 12 | not tested | not tested |
Parsnip | 171 | 57 | 27 | 19 | 14 | 15 | 32 | little or no germination | little or no germination |
Pea | not tested | 36 | 13 | 9 | 7 | 6 | 6 | not tested | not tested |
Pepper | little or no germination | little or no germination | little or no germination | 25 | 12 | 8 | 8 | 9 | little or no germination |
Radish | not tested | 29 | 11 | 6 | 4 | 3 | 3 | not tested | not tested |
Spinach | 62 | 22 | 12 | 7 | 6 | 5 | 6 | little or no germination | little or no germination |
Tomato | little or no germination | little or no germination | 43 | 14 | 8 | 6 | 6 | 9 | little or no germination |
Turnip | little or no germination | little or no germination | 5 | 3 | 2 | 1 | 1 | 1 | 2 |
Watermelon | not tested | little or no germination | not tested | not tested | 12 | 5 | 4 | 3 | not tested |
- 1Daily fluctuation to 60F or lower at night is essential.