When can I plant Oleander in Zone 12b

One of the best tools that we have as gardeners to help us figure out our gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The first opportunity to plant oleander in Zone 12b should be determined by checking out the USDA zone info.


Planting Calendar for Oleander

Frost tolerance for oleander: Not tolerant of frost.
When you should plant them: After all chance of frost has passed.

Since oleander require warm weather you have to wait until after the last frost when the weather gets warmer before you can plant them.

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

The earliest that you can plant oleander in Zone 12b 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 oleander and expect a good harvest is probably November. If you wait any later than that and your oleander may not have a chance to really do well. If you are starting your oleander indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Zone 12b it never frosts. In the coldest months of winter we can expect an average low temperature of 55°F.

Since the USDA zone info for Zone 12b is an average our actual date of last frost is different every year. Since it never frosts in Zone 12b you do not have to be ready to cover your oleander in the event of one of those late frosts.

USDA Zone Info for Zone 12b

Here is the info for USDA Zone 12b.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low55°F
Highest Expected Low60°F

This means that on a really cold year, the coldest it will get is 55°F. On most years you should be prepared to experience lows near 60°F.

Plants to Grow in Zone 12b

You may be interested in our other planting guides for Zone 12b.