One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. 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 possible to determine when you can plant artichokes.

Planting Calendar for Artichokes

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

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

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

Last Frost Date

On average all chance of frost has passed is on May 15 in Williston. In the coldest months of winter you should expect an average low temperature of -30°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Williston and it changes from year to year. Since half of the time in Williston you get a frost after May 15 be ready to cover your artichokes 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.