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.

In Williston you can estimate when it's possible to plant fountain grass by using the USDA zone info.

Planting Calendar for Fountain Grass

Frost tolerance for fountain grass:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Fountain Grass do well in mild cold which means that you can plant them slightly earlier in the year than more sensitive plants.

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

The last month that you can plant fountain grass and expect a good harvest is probably August. You probably don't want to wait any later than that or else your fountain grass may not have a chance to grow to maturity. Starting your fountain grass indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Remember that USDA zone info for Williston is just an average and the actual date of last frost will vary from year to year. Since half of the time in Williston you get a frost after May 15 be ready to protect your fountain grass in the event of one of those late frosts.

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.