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 USDA zone info for Richmond should be reffered to in order to figure out when it's the best time to plant verbena.

Planting Calendar for Verbena

Frost tolerance for verbena:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Verbena do ok in moderate cold which means that you can start planting them slightly earlier than more sensitive plants.

The earliest that you can plant verbena 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 verbena and expect a good harvest is probably September. If you wait any later than that and your verbena may not have a chance to grow to maturity. If you are starting your verbena indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Richmond. In the coldest months of winter you can expect an average low temperature of 20°F.

Keep in mind that USDA zone info for Richmond is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Richmond last frost occurs after February 15 so always be ready to protect your verbena in the event of a late frost.

USDA Zone Info for Richmond

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Richmond

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