When to Plant Cuphea in Centralia, WA

One of the best tools that you have as gardeners to help us estimate your 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 your area.

The first opportunity to plant cuphea in Centralia can be figured out by checking out the USDA zone info.


Planting Calendar for Cuphea

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

Cuphea are not cold tolerant which means that you must wait until it warms up after the last 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 Centralia 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. 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 little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Centralia. In the coldest months of winter you can expect an average low temperature of 15°F.

Since the USDA zone info for Centralia is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Centralia it frosts late in the year after March 15 be ready to protect your cuphea in the event of one of those late frosts.

USDA Zone Info for Centralia

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)March 15
Average Date of First Frost (fall)November 15
Lowest Expected Low15°F
Highest Expected Low20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Centralia

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