Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant nierembergia in Rocky Mount should be estimated by looking at the USDA zone info.

Planting Calendar for Nierembergia

Frost tolerance for nierembergia:	Not tolerant of frost.
When to plant:	After the last frost.

Since nierembergia are not cold tolerant you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant nierembergia in Rocky Mount 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 nierembergia and expect a good harvest is probably August. Any later than that and your nierembergia may not have a chance to grow to maturity. You can get started a little bit earlier by starting your nierembergia indoors.

Last Frost Date

On average the last frost is on April 15 in Rocky Mount. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for Rocky Mount is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Rocky Mount it frosts late in the year after April 15 be ready to cover your nierembergia in the event of a late frost.

USDA Zone Info for Rocky Mount

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 Rocky Mount

You may be interested in your other planting guides for Rocky Mount.