One of the first steps you take when you are determining 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.

A common way of determining when it's a good idea to plant brunfelsia is to consult the USDA zone info for Chisholm.

Planting Calendar for Brunfelsia

Frost tolerance for brunfelsia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Brunfelsia require warm weather which means that it's necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant brunfelsia in Chisholm 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. Any later than that and your brunfelsia may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your brunfelsia indoors.

Last Frost Date

The average date of last frost is May 15 in Chisholm. In the coldest months of winter you should expect an average low temperature of -35°F.

Just be sure to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Chisholm and it changes from year to year. Half of the time in Chisholm you get a frost after May 15 so make sure that you are ready to protect your brunfelsia in the event of one of those late frosts.

USDA Zone Info for Chisholm

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-35°F
Highest Expected Low	-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Chisholm

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