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

One way of estimating when to plant cuphea is to examine the USDA zone info for Lockport.

Planting Calendar for Cuphea

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

Since cuphea are not cold tolerant you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant cuphea in Lockport 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 fully mature. Starting your cuphea indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Lockport. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Lockport may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Lockport you get surprised by a frost after April 15 be ready to protect your cuphea in the event of one of those late frosts.

USDA Zone Info for Lockport

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

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

Plants to Grow in Lockport

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