Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Pleasanton should be read to estimate when you can plant campanula.

Planting Calendar for Campanula

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

You can plant campanula a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant campanula in Pleasanton 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. If you wait any later than that and your campanula may not have a chance to really do well. You can get started a couple of weeks earlier by starting your campanula indoors.

Last Frost Date

In Pleasanton the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

It's important to remember that USDA zone info for Pleasanton may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Pleasanton it frosts late in the year after February 15 be ready to cover your campanula if you have a late frost.

USDA Zone Info for Pleasanton

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Pleasanton

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