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

One way of figuring out when it's the best time to plant thunbergia is to look at the USDA zone info for High Point.

Planting Calendar for Thunbergia

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

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

The earliest that you can plant thunbergia in High Point 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. Any later than that and your thunbergia may not have a chance to fully mature. 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 High Point. It might get as low as 5°F during the coldest months of winter.

Remember that USDA zone info for High Point is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in High Point you get a frost after April 15 be ready to protect your thunbergia if you have a late frost.

USDA Zone Info for High Point

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 High Point

You may be interested in your other planting guides for High Point.