Before planting it is a good idea to find your USDA Zone info to determine 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.

A way of figuring out when it's possible to plant thunbergia is to use the USDA zone info for Zone 12b.

Planting Calendar for Thunbergia

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

Thunbergia require warm weather which means that you have to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant thunbergia in Zone 12b is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant thunbergia and expect a good harvest is probably November. Any later than that and your thunbergia may not have a chance to fully mature. Starting your thunbergia indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Zone 12b it never frosts. It might get as low as 55°F during the coldest months of winter.

Since the USDA zone info for Zone 12b is an average the actual date of last frost changes from year to year. Since it never frosts in Zone 12b you do not have to be ready to protect your thunbergia if you have one of those late frosts.

USDA Zone Info for Zone 12b

Here is the info for USDA Zone 12b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	55°F
Highest Expected Low	60°F

This means that on a really cold year, the coldest it will get is 55°F. On most years you should be prepared to experience lows near 60°F.

Plants to Grow in Zone 12b

You may be interested in your other planting guides for Zone 12b.