Before planting it is a good idea to find your USDA Zone info to estimate 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.

You should be able to figure out when to plant cerastium by using the USDA zone info for Oceanside.

Planting Calendar for Cerastium

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

Cerastium can survive in moderate cold which tells us that you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant cerastium in Oceanside 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. You can get started a couple of weeks earlier by starting your cerastium indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Oceanside. You can expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Oceanside is just an average the actual date of last frost is different every year. Since half of the time in Oceanside you get a frost after January 31 be ready to protect your cerastium if you have one of those late frosts.

USDA Zone Info for Oceanside

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Oceanside

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