When can I plant Cuphea in Zone 7b

The USDA Zone info is a great tool for gardeners to help us estimate our gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The first opportunity to plant cuphea in Zone 7b should be determined by using the USDA zone info.


Planting Calendar for Cuphea

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

You really shouldn't plant cuphea until after the last frost when the weather gets warmer because they are not cold tolerant.

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 7b is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant cuphea and expect a good harvest is probably August. Any later than that and your cuphea may not have a chance to really do well. If you are starting your cuphea indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Zone 7b the average date of last frost happens on April 15. We can expect an average low temperature of 5°F in the coldest months of winter.

Just be sure to remember that our actual date of last frost is an average because it is based on the USDA zone info for Zone 7b and it will vary from year to year. Since half of the time in Zone 7b we get a frost after April 15 be ready to cover your cuphea in the event of a surprise late frost.

USDA Zone Info for Zone 7b

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low5°F
Highest Expected Low10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Zone 7b

You may be interested in our other planting guides for Zone 7b.