Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By looking at the USDA zone info for Perris you will be able to figure out when you can 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 are one of those plants that can tolerate a little bit of cold weather which means that you can start planting them earlier than other frost tender plants.

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

The last month that you can plant cerastium and expect a good harvest is probably October. You probably don't want to wait any later than that or else your cerastium may not have a chance to really do well. You can get started a few weeks earlier by starting your cerastium indoors.

Last Frost Date

The average date of last frost is February 15 in Perris. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Perris is just an average the actual date of last frost will vary from year to year. Half of the time in Perris you get a frost after February 15 so just be sure to be ready to cover your cerastium in the event of a late frost.

USDA Zone Info for Perris

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Perris

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