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.

By reviewing the USDA zone info for Hereford you should be able to determine when you can plant achimenes.

Planting Calendar for Achimenes

Frost tolerance for achimenes:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's a bad idea to plant achimenes until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant achimenes 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 achimenes and expect a good harvest is probably August. Any later than that and your achimenes may not have a chance to really do well. You can get started a few weeks earlier by starting your achimenes indoors.

Last Frost Date

In Hereford the average date of last frost happens on April 15. It might get as low as 0°F during the coldest months of winter.

It's important to remember that USDA zone info for Hereford is not always accurate and the actual date of last frost is different every year. Half of the time in Hereford last frost occurs after April 15 so always be ready to protect your achimenes in the event of one of those late frosts.

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.