When can I plant Calla Lily in Zone 11a

One of the first steps we take when we are making a decision about our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The USDA zone info for Zone 11a can be looked at to estimate when you can plant calla lily.


Planting Calendar for Calla Lily

Frost tolerance for calla lily: Not tolerant of frost.
When you should plant them: After the last frost.

It's probably not a good idea to plant calla lily until after the last frost because they require warm weather.

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

The earliest that you can plant calla lily in Zone 11a 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 calla lily and expect a good harvest is probably November. You probably don't want to wait any later than that or else your calla lily may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your calla lily indoors.

Last Frost Date

In Zone 11a it never frosts. In the coldest months of winter we can expect an average low temperature of 40°F.

Since the USDA zone info for Zone 11a is just an average our actual date of last frost can change quite a bit from year to year. Since it never frosts in Zone 11a you do not have to be ready to cover your calla lily in the event of a surprise late frost.

USDA Zone Info for Zone 11a

Here is the info for USDA Zone 11a.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low40°F
Highest Expected Low45°F

This means that on a really cold year, the coldest it will get is 40°F. On most years you should be prepared to experience lows near 45°F.

Plants to Grow in Zone 11a

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