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

In Richmond you can determine when to plant doronicum by checking out 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.

You can plant doronicum just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant doronicum in Richmond 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. You probably don't want to wait any later than that or else your doronicum may not have a chance to fully mature. 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 Richmond. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Richmond is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Richmond it frosts late in the year after April 15 so make sure that you are prepared to protect your doronicum if you have a surprise late frost.

USDA Zone Info for Richmond

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 Richmond

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