One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant cuphea in Somersworth should be determined by looking at the USDA zone info.

Planting Calendar for Cuphea

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

Since cuphea do not do well in cold weather you really should wait until after the last frost before you can plant them.

The earliest that you can plant cuphea in Somersworth 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 fully mature. 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

On average the last frost when the weather gets warmer is on April 15 in Somersworth. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Somersworth may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Somersworth it frosts late in the year after April 15 be ready to cover your cuphea if you have a late frost.

USDA Zone Info for Somersworth

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Somersworth

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