One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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 possible to estimate when it's the best time to plant thunbergia by using the USDA zone info for Elizabethtown.

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 it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant thunbergia in Elizabethtown 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 little bit earlier by starting your thunbergia indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Elizabethtown. You should expect an average low temperature of -5°F in the coldest months of winter.

Remember that USDA zone info for Elizabethtown may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Elizabethtown it frosts late in the year after April 15 so just be sure to be ready to cover your thunbergia in the event of one of those late frosts.

USDA Zone Info for Elizabethtown

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Elizabethtown

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