One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant doronicum in Greenbrier can be figured out by reviewing the USDA zone info.

Planting Calendar for Doronicum

Frost tolerance for doronicum:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Doronicum do well in moderate cold which tells us that you can start planting them earlier than more sensitive plants.

The earliest that you can plant doronicum in Greenbrier is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant doronicum and expect a good harvest is probably September. Any later than that and your doronicum may not have a chance to really do well. You can get started a little bit earlier by starting your doronicum indoors.

Last Frost Date

The average date of last frost is April 15 in Greenbrier. It might get as low as 0°F during the coldest months of winter.

Keep in mind that USDA zone info for Greenbrier is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Greenbrier you get surprised by a frost after April 15 so always be ready to protect your doronicum in the event of one of those late frosts.

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.