One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when it's the best time to plant banana is to use the USDA zone info for Williston.

Planting Calendar for Banana

Frost tolerance for banana:	Not tolerant of frost.
When to plant:	After the last frost.

Since banana require warm weather it's necessary to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant banana 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 banana and expect a good harvest is probably August. Any later than that and your banana may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your banana indoors.

Last Frost Date

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

Remember that USDA zone info for Williston is an average and the actual date of last frost is different every year. Since half of the time in Williston you get surprised by a frost after May 15 be ready to protect your banana if you have a surprise 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.