Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By looking at the USDA zone info for Williston it's a good idea to figure out when you can plant bachelor buttons.

Planting Calendar for Bachelor Buttons

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

Since bachelor buttons do well in moderate cold you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant bachelor buttons 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 bachelor buttons and expect a good harvest is probably August. Any later than that and your bachelor buttons may not have a chance to really do well. Starting your bachelor buttons 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 should 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 is different every year. Since half of the time in Williston it frosts late in the year after May 15 be ready to protect your bachelor buttons 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.