When can I plant Campanula in Zone 11b

One of the first steps we take when we are estimating our gardening schedule is find our USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

In Zone 11b you can figure out when you can plant campanula by looking at the USDA zone info.


Planting Calendar for Campanula

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

You can plant campanula a bit earlier in the year because they are moderately cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant campanula
Possibly ok, but a risky time to plant campanula
Probably not a good time to plant campanula

The earliest that you can plant campanula in Zone 11b 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 November. You probably don't want to wait any later than that or else your campanula may not have a chance to really do well. If you are starting your campanula indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Zone 11b it never frosts. In the coldest months of winter we should expect an average low temperature of 45°F.

Always keep in mind that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 11b and it changes from year to year. Since it never frosts in Zone 11b you do not have to be ready to cover your campanula in the event of a surprise late frost.

USDA Zone Info for Zone 11b

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low45°F
Highest Expected Low50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Zone 11b

You may be interested in our other planting guides for Zone 11b.