One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

In Crystal Lake you can figure out when it's the best time to plant brunfelsia by reviewing the USDA zone info.

Planting Calendar for Brunfelsia

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

Since brunfelsia require warm weather it is necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant brunfelsia in Crystal Lake 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 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 grow to maturity. Starting your brunfelsia indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Crystal Lake. You should expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Crystal Lake is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Crystal Lake you get surprised by a frost after April 15 be ready to protect your brunfelsia if you have a late frost.

USDA Zone Info for Crystal Lake

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Crystal Lake

You may be interested in your other planting guides for Crystal Lake.