The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Dekalb can be used to estimate when it's possible to plant crassula.

Planting Calendar for Crassula

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

It's not a good idea to plant crassula until after all chance of frost has passed because they require warm weather.

The earliest that you can plant crassula in Dekalb 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 grow to maturity. If you are starting your crassula indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Dekalb the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that USDA zone info for Dekalb is just an average and the actual date of last frost will vary from year to year. Half of the time in Dekalb you get a frost after April 15 so make sure that you are prepared to protect your crassula in the event of a surprise late frost.

USDA Zone Info for Dekalb

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 Dekalb

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