One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to estimate when you can plant thunbergia by referring to the USDA zone info for Greensboro.

Planting Calendar for Thunbergia

Frost tolerance for thunbergia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since thunbergia do not do well in cold weather you really should wait until after the last frost has passed before you can plant them.

The earliest that you can plant thunbergia in Greensboro 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 thunbergia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your thunbergia may not have a chance to really do well. You can get started a couple of weeks earlier by starting your thunbergia indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Greensboro. In the coldest months of winter you should expect an average low temperature of 5°F.

Always keep in mind that USDA zone info for Greensboro may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Greensboro last frost occurs after April 15 so be sure to be ready to cover your thunbergia if you have a late frost.

USDA Zone Info for Greensboro

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Greensboro

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