One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Downey it's possible to determine 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 are moderately cold tolerant which means that you can start planting them earlier than more sensitive plants.

The earliest that you can plant cerastium in Downey 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. 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 little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Downey. In the coldest months of winter you should expect an average low temperature of 35°F.

Just be sure to remember that USDA zone info for Downey is not always accurate and the actual date of last frost changes from year to year. Half of the time in Downey you get a frost after January 31 so make sure that you are prepared to protect your cerastium in the event of one of those late frosts.

USDA Zone Info for Downey

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Downey

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