Vegetable Seed Starting Dates
Different vegetables thrive in different weather conditions. Vegetables such as tomatoes, peppers, melons, corn, and cucumbers like the warmer weather and will not tolerate frost. If planted before the average frost date for your area, make sure you watch the weather and protect your plants when frost is forecasted.
Depending on the temperature, a pillow case, or sheet, newspaper, or
plastic bag should be adequate protection. For colder, "hard"
frosts, plan on using a bucket or similar for improved
protection. In general, it would be wise to wait to plant
these more sensitive varieties until the danger of frost is gone.
Even though there is no frost, the cooler temperatures will often
stunt growth with some of these sensitive varieties.
There are many vegetables that do well, and actually prefer cooler
weather. Beets, broccoli, cabbage, carrots, onions, peas, and
spinach can survive a light frost, and some actually prefer the
cooler weather. Many cooler weather vegetables will bolt, or
go to flower much quicker in warmer weather, making it more
difficult to time your harvest. Check out the chart below to
get a good overview of when to plant your vegetable seeds.
Look at the "when to plant" section of the Garden Planning page to
determine the frost free dates for your area. You can click on
each of the individual vegetables for detailed information on that
vegetable.
| Vegetable | Last Seed starting date(days before last frost) | Hardiness Scale | |
| Beans | 14-28 | 80-133 | 5 |
| Beets | 14-28 | 74-104 | 2 |
| Broccoli | 59-66 | 93-119 | 3 |
| Brussels Sprouts | 45-80 | 118-145 | 1 |
| Cabbage | 63-75 | 104-130 | 2 |
| Carrots | 14-28 | 85-95 | 2 |
| Cauliflower | 25-45 | 89-140 | 4 |
| Celery | 61-70 | 140-185 | 4 |
| Corn | 4-11 | 97-127 | 5 |
| Cucumber | 14-21 | 84-118 | 5 |
| Eggplant | 33-55 | 125-177 | 5 |
| Kale | 52-108 | 94-108 | 2 |
| Lettuce (head) | 92-127 | 87-122 | 3 |
| Melons | 18-21 | 112-151 | 5 |
| Onions | 46-92 | 2 | |
| Peas | 35-56 | 70-100 | 2 |
| Peppers | 28-35 | 115-148 | 5 |
| Potatoes | 14-28 | 90-120 | 2 |
| Spinach | 56-64 | 59-69 | 2 |
| Squash (summer) | 14-28 | 71-81 | 4 |
| Sweet Potatoes | 43-57 | 178-221 | 5 |
| Tomatoes | 28-56 | 132-202 | 5 |
| 5 - Does not tolerate frost, warm nights(night temperature >55F) |
| 4 - Does not tolerate frost |
| 3 - Can withstand light frosts, with no damage |
| 2 - hardy to frosts and light freezes - plant as soon as the ground can be worked |
| 1 - winter hardy |
