The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Williston can be read to determine when it's the best time to plant festuca.

Planting Calendar for Festuca

Frost tolerance for festuca:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Festuca do ok in mild cold which tells us that you can plant them just a bit earlier in the year than other frost tender plants.

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

The last month that you can plant festuca and expect a good harvest is probably August. You probably don't want to wait any later than that or else your festuca may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your festuca indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on May 15 in Williston. It might get as low as -30°F during the coldest months of winter.

Always keep in mind that USDA zone info for Williston is not always accurate 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 cover your festuca in the event of 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.