This calendar chart shows the first planting dates to plant certain vegetables in the Clearwater area with our average Last Spring Frost date of May 24th. Please be aware that this is weather dependant.
March
3rd week: Sow Cabbage and Cauliflower indoors.
April
1st week: Sow Broccoli indoors.
2nd week: Onion Sets. Sow Peppers and Tomatoes indoors.
3rd week: Peas & Spinach. Sow Lettuce indoors.
4th week: Cabbage*, Cauliflower*, Radishes and Turnips
*Cabbage and Cauliflower can be sown indoors in the 3rd week of March and then planted in the garden now.
May
1st week: Beets and Potatoes.
2nd week: Broccoli* and Lettuce*, Sow Pumpkins indoors.
3rd week: Carrots and Chard
4th week: Cucumbers, Squash and Melons can be sown indoors.
*Broccoli can be sown indoors in the 1st week of April and Lettuce can be sown indoors in the 3rd week of April and then planted in the garden now.
June
1st week: Green Beans, Sweet Corn and Pumpkins.
2nd week: Cucumbers, Squash and Melons
3rd week: Peppers and Tomatoes
Alternatively another rule of thumb around here has been that the last frost is a few days after the full moon in May and the first frost is around the full moon in September.
Soil Temperatures for Vegetable Seeds
| Vegetable | Min (°C) | Optimum Range (°C) | Optimum (°C) | Max (°C) |
| Asparagus | 10 | 15-29 | 24 | 35 |
| Bean | 15 | 15-29 | 27 | 35 |
| Bean, Lima | 15 | 18-29 | 29 | 29 |
| Beet | 4 | 10-29 | 29 | 29 |
| Cabbage | 4 | 7-35 | 29 | 38 |
| Carrot | 4 | 7-29 | 27 | 35 |
| Cauliflower | 4 | 7-29 | 27 | 38 |
| Celery | 4 | 15-21 | 21 | 29 |
| Chard, Swiss | 4 | 10-29 | 29 | 35 |
| Corn | 10 | 15-35 | 35 | 41 |
| Cucumber | 15 | 15-35 | 35 | 41 |
| Eggplant | 15 | 15-35 | 35 | 41 |
| Lettuce | 2 | 4-27 | 26 | 29 |
| Muskmelon | 15 | 27-35 | 32 | 38 |
| Okra | 15 | 21-35 | 35 | 41 |
| Parsley | 4 | 10-29 | 24 | 35 |
| Parsnip | 2 | 10-21 | 18 | 29 |
| Pea | 4 | 4-24 | 24 | 29 |
| Pepper | 15 | 18-35 | 29 | 35 |
| Pumpkin | 15 | 21-32 | 32 | 38 |
| Radish | 4 | 7-32 | 29 | 35 |
| Spinach | 35 | 7-24 | 21 | 29 |
| Squash | 15 | 21-35 | 35 | 38 |
| Tomato | 10 | 21-35 | 29 | 35 |
| Turnip | 4 | 15-41 | 29 | 41 |
| Watermelon | 15 | 21-35 | 35 | 41 |