The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when it's the best time to plant campanula by reviewing the USDA zone info for Ridgecrest.

Planting Calendar for Campanula

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

Since campanula do well in moderate cold you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant campanula in Ridgecrest 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 campanula and expect a good harvest is probably September. If you wait any later than that and your campanula may not have a chance to fully mature. You can get started a little bit earlier by starting your campanula indoors.

Last Frost Date

The average date of last frost is March 15 in Ridgecrest. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Ridgecrest is an average the actual date of last frost will vary from year to year. Since half of the time in Ridgecrest you get a frost after March 15 be ready to protect your campanula in the event of a late frost.

USDA Zone Info for Ridgecrest

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Ridgecrest

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