One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when it's the best time to plant thunbergia by referring to the USDA zone info for West Milton.

Planting Calendar for Thunbergia

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

Thunbergia require warm weather which tells us 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 West Milton 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 really do well. You can get started a few weeks earlier by starting your thunbergia indoors.

Last Frost Date

The average date of last frost is April 15 in West Milton. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for West Milton is an average the actual date of last frost can change quite a bit from year to year. Half of the time in West Milton it frosts late in the year after April 15 so make sure that you are ready to cover your thunbergia in the event of a surprise late frost.

USDA Zone Info for West Milton

Here is the info for USDA Zone 6a.

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

Plants to Grow in West Milton

You may be interested in your other planting guides for West Milton.