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.

You can determine when you can plant thunbergia in Safety Harbor by looking at the USDA zone info.

Planting Calendar for Thunbergia

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

It's probably a bad idea to plant thunbergia until after the last frost because they require warm weather.

The earliest that you can plant thunbergia in Safety Harbor is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant thunbergia and expect a good harvest is probably September. 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

In Safety Harbor the average date of last frost happens on January 31. In the coldest months of winter you should expect an average low temperature of 30°F.

Remember that USDA zone info for Safety Harbor may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Safety Harbor last frost occurs after January 31 so make sure that you are prepared to cover your thunbergia if you have a surprise late frost.

USDA Zone Info for Safety Harbor

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Safety Harbor

You may be interested in your other planting guides for Safety Harbor.