Before planting it is a good idea to find your USDA Zone info to determine 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 USDA zone info for Crookston can be reviewed to determine when it's the best time to plant brunfelsia.

Planting Calendar for Brunfelsia

Frost tolerance for brunfelsia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably a bad idea to plant brunfelsia until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant brunfelsia in Crookston 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 brunfelsia and expect a good harvest is probably August. If you wait any later than that and your brunfelsia may not have a chance to really do well. Starting your brunfelsia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on May 15 in Crookston. In the coldest months of winter you should expect an average low temperature of -30°F.

Remember that USDA zone info for Crookston may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Crookston there is a last frost after May 15 so just be sure to be ready to cover your brunfelsia if you have a 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.