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.

The first opportunity to plant xerianthemum in Crookston can be estimated by referring to the USDA zone info.

Planting Calendar for Xerianthemum

Frost tolerance for xerianthemum:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Xerianthemum are barely cold tolerant which means that you can plant them slightly earlier than other frost tender plants.

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

The last month that you can plant xerianthemum and expect a good harvest is probably August. You probably don't want to wait any later than that or else your xerianthemum may not have a chance to grow to maturity. Starting your xerianthemum indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Remember that USDA zone info for Crookston is an average and the actual date of last frost changes from year to year. Since half of the time in Crookston you get surprised by a frost after May 15 be ready to protect your xerianthemum in the event of a surprise late frost.

USDA Zone Info for Crookston

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 Crookston

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