The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Colonial Heights you can estimate when it's possible to plant trifolium by using the USDA zone info.

Planting Calendar for Trifolium

Frost tolerance for trifolium:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since trifolium are barely cold tolerant you can plant them slightly earlier in the year than other plants that might not handle the cold.

The earliest that you can plant trifolium in Colonial Heights 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 trifolium and expect a good harvest is probably August. Any later than that and your trifolium may not have a chance to really do well. Starting your trifolium indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Colonial Heights. In the coldest months of winter you can expect an average low temperature of 5°F.

Since the USDA zone info for Colonial Heights is an average the actual date of last frost changes from year to year. Half of the time in Colonial Heights it frosts late in the year after April 15 so be sure to be ready to cover your trifolium in the event of a late frost.

USDA Zone Info for Colonial Heights

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Colonial Heights

You may be interested in your other planting guides for Colonial Heights.