One of the best tools that you have as gardeners to help us estimate 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 reviewing the USDA zone info for Dewitt you should be able to estimate when it's possible to plant cerastium.

Planting Calendar for Cerastium

Frost tolerance for cerastium:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Cerastium do ok in mild cold which means that you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant cerastium in Dewitt is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant cerastium and expect a good harvest is probably September. If you wait any later than that and your cerastium may not have a chance to fully mature. You can get started a little bit earlier by starting your cerastium indoors.

Last Frost Date

On average the last frost is on April 15 in Dewitt. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Dewitt is just an average the actual date of last frost is different every year. Half of the time in Dewitt it frosts late in the year after April 15 so just be sure to be ready to cover your cerastium in the event of one of those late frosts.

USDA Zone Info for Dewitt

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 Dewitt

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