The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. 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 Knoxville should be reviewed to estimate when it's possible to plant nolana.

Planting Calendar for Nolana

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

You really shouldn't plant nolana until after all chance of frost has passed because they require warm weather.

The earliest that you can plant nolana in Knoxville 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 nolana and expect a good harvest is probably August. Any later than that and your nolana may not have a chance to really do well. You can get started a couple of weeks earlier by starting your nolana indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Knoxville. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Knoxville is an average the actual date of last frost will vary from year to year. Since half of the time in Knoxville it frosts late in the year after April 15 be ready to cover your nolana if you have a surprise late frost.

USDA Zone Info for Knoxville

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 Knoxville

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