One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to figure out when it's a good idea to plant calliopsis by checking out the USDA zone info for Greenbrier.

Planting Calendar for Calliopsis

Frost tolerance for calliopsis:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Since calliopsis are not cold tolerant you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant calliopsis in Greenbrier 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 calliopsis and expect a good harvest is probably August. Any later than that and your calliopsis may not have a chance to grow to maturity. Starting your calliopsis indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Greenbrier may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Greenbrier there is a last frost after April 15 be ready to cover your calliopsis if you have a surprise late frost.

USDA Zone Info for Greenbrier

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 Greenbrier

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