Before planting it is a good idea to find your USDA Zone info to estimate 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 thunbergia in Arkadelphia should be estimated by checking out the USDA zone info.

Planting Calendar for Thunbergia

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

You should not plant thunbergia until after the last frost because they are not cold tolerant.

The earliest that you can plant thunbergia in Arkadelphia 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. If you wait any later than that and your thunbergia may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your thunbergia indoors.

Last Frost Date

The average date of last frost is March 15 in Arkadelphia. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Arkadelphia may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Arkadelphia you get surprised by a frost after March 15 so make sure that you are ready to cover your thunbergia if you have a surprise late frost.

USDA Zone Info for Arkadelphia

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Arkadelphia

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