When can I plant Cuphea in Zone 10b

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

A common way of determining when it's the best time to plant cuphea is to consult the USDA zone info for Zone 10b.


Planting Calendar for Cuphea

Frost tolerance for cuphea: Not tolerant of frost.
When you should plant them: After the last frost has passed.

Since cuphea require warm weather you must wait until after the last frost when the weather gets warmer before you can plant them.

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

The earliest that you can plant cuphea in Zone 10b is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant cuphea and expect a good harvest is probably September. If you wait any later than that and your cuphea may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your cuphea indoors.

Last Frost Date

On average the last frost is on January 31 in Zone 10b. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for Zone 10b is just an average our actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 10b we get a frost after January 31 be ready to protect your cuphea in the event of a surprise late frost.

USDA Zone Info for Zone 10b

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)January 31
Average Date of First Frost (fall)December 15
Lowest Expected Low35°F
Highest Expected Low40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Zone 10b

You may be interested in our other planting guides for Zone 10b.