Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Urbana you can estimate when you can plant cerastium by using the USDA zone info.

Planting Calendar for Cerastium

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

You can plant cerastium a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant cerastium in Urbana 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 grow to maturity. Starting your cerastium indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Urbana. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Urbana is just an average the actual date of last frost changes from year to year. Half of the time in Urbana you get surprised by a frost after April 15 so be sure to be ready to protect your cerastium in the event of a late frost.

USDA Zone Info for Urbana

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 Urbana

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