When can I plant Dipladenia in Zone 12b

Before planting it is a good idea to find our USDA Zone info to determine our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

In Zone 12b you can determine when it's possible to plant dipladenia by looking at the USDA zone info.


Planting Calendar for Dipladenia

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

Dipladenia are not cold tolerant which means that it is necessary to wait until it warms up after all chance of frost has passed before you can plant them.

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

The earliest that you can plant dipladenia 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 dipladenia and expect a good harvest is probably November. You probably don't want to wait any later than that or else your dipladenia may not have a chance to really do well. If you are starting your dipladenia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

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

Since the USDA zone info for Zone 12b is not always accurate our actual date of last frost changes from year to year. Since it never frosts in Zone 12b you do not have to be ready to cover your dipladenia if we have a surprise late frost.

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.