The USDA Zone info is a great tool for gardeners to help us figure out 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.

The USDA zone info for Hereford can be read to determine when to plant evolvulus.

Planting Calendar for Evolvulus

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

It's a bad idea to plant evolvulus until after the last frost has passed because they do not do well in cold weather.

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

Last Frost Date

On average the last frost has passed is on April 15 in Hereford. In the coldest months of winter you can expect an average low temperature of 0°F.

Remember that USDA zone info for Hereford is an average and the actual date of last frost changes from year to year. Half of the time in Hereford it frosts late in the year after April 15 so just be sure to be ready to protect your evolvulus in the event of a late frost.

USDA Zone Info for Hereford

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Hereford

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