One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Williston you will be able to determine when it's the best time to plant pumpkins.

Planting Calendar for Pumpkins

Frost tolerance for pumpkins:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since pumpkins require warm weather you need to wait until after the last frost has passed before you can plant them.

The earliest that you can plant pumpkins in Williston is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant pumpkins and expect a good harvest is probably August. If you wait any later than that and your pumpkins may not have a chance to grow to maturity. You can get started a little bit earlier by starting your pumpkins indoors.

Last Frost Date

The average date of last frost is May 15 in Williston. In the coldest months of winter you can expect an average low temperature of -30°F.

It's important to remember that USDA zone info for Williston is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Williston last frost occurs after May 15 be ready to protect your pumpkins if you have a late frost.

USDA Zone Info for Williston

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Williston

You may be interested in your other planting guides for Williston.