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.

The best time to plant campanula in Somerton should be estimated by using the USDA zone info.

Planting Calendar for Campanula

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

Since campanula are one of those plants that can tolerate a little bit of cold weather you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant campanula in Somerton 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 campanula and expect a good harvest is probably October. Any later than that and your campanula may not have a chance to grow to maturity. Starting your campanula indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Somerton is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Somerton there is a last frost after January 31 be ready to cover your campanula if you have one of those late frosts.

USDA Zone Info for Somerton

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 Somerton

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