One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Crest Hill it's possible to figure out when to plant crassula.

Planting Calendar for Crassula

Frost tolerance for crassula:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You should not plant crassula until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant crassula in Crest Hill 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 crassula and expect a good harvest is probably August. If you wait any later than that and your crassula may not have a chance to really do well. You can get started a little bit earlier by starting your crassula indoors.

Last Frost Date

The average date of last frost is April 15 in Crest Hill. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Crest Hill is just an average the actual date of last frost is different every year. Half of the time in Crest Hill you get a frost after April 15 so be sure to be ready to protect your crassula in the event of one of those late frosts.

USDA Zone Info for Crest Hill

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 Crest Hill

You may be interested in your other planting guides for Crest Hill.