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

In Wahpeton you can figure out when it's the best time to plant evolvulus by looking at the USDA zone info.

Planting Calendar for Evolvulus

Frost tolerance for evolvulus:	Not tolerant of frost.
When to plant:	After the last frost.

Evolvulus require warm weather which tells us that you have to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant evolvulus in Wahpeton is May. However, you really should wait until June if you don't want to take any chances.

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

Last Frost Date

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

Always keep in mind that USDA zone info for Wahpeton is an average and the actual date of last frost will vary from year to year. Half of the time in Wahpeton last frost occurs after May 15 so be sure to be ready to protect your evolvulus in the event of a surprise late frost.

USDA Zone Info for Wahpeton

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 Wahpeton

You may be interested in your other planting guides for Wahpeton.