The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Williston should be reviewed to estimate when it's a good idea to plant baby blue eyes.

Planting Calendar for Baby Blue Eyes

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

Baby Blue Eyes do well in moderate cold which means that you can plant them earlier than other frost tender plants.

The earliest that you can plant baby blue eyes 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 baby blue eyes and expect a good harvest is probably August. If you wait any later than that and your baby blue eyes may not have a chance to grow to maturity. Starting your baby blue eyes indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Williston is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Williston you get a frost after May 15 so make sure that you are prepared to cover your baby blue eyes 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.