When to Plant Cuphea in Brentwood, CA

One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Brentwood it's possible to determine when it's the best time to plant cuphea.

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Planting Calendar for Cuphea

Frost tolerance for cuphea: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Cuphea are not cold tolerant which means that it's important 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 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 Brentwood is March. However, you really should wait until April 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. You probably don't want to wait any later than that or else 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 couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Brentwood. You should expect an average low temperature of 25°F in the coldest months of winter.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Brentwood and it changes from year to year. Half of the time in Brentwood you get surprised by a frost after February 15 so be sure to be ready to protect your cuphea if you have a surprise late frost.

USDA Zone Info for Brentwood

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low25°F
Highest Expected Low30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Brentwood

You may be interested in your other planting guides for Brentwood.