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.

A common way of making a decision about when it's possible to plant cuphea is to look at the USDA zone info for Trinidad.

Planting Calendar for Cuphea

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

It's probably not a good idea to plant cuphea until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant cuphea in Trinidad 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. You can get started a few weeks earlier by starting your cuphea indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Trinidad. In the coldest months of winter you should expect an average low temperature of -10°F.

Keep in mind that USDA zone info for Trinidad is just an average and the actual date of last frost changes from year to year. Half of the time in Trinidad you get surprised by a frost after April 15 so be sure to be ready to protect your cuphea if you have one of those late frosts.

USDA Zone Info for Trinidad

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 Trinidad

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