The USDA Zone info is a great tool for gardeners to help us figure out 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.

It's possible to determine when it's the best time to plant thunbergia by reviewing the USDA zone info for Melbourne.

Planting Calendar for Thunbergia

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

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 Melbourne is March. However, you really should wait until April 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. Starting your thunbergia indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Melbourne. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Melbourne may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Melbourne it frosts late in the year after February 15 so be sure to be ready to cover your thunbergia in the event of one of those late frosts.

USDA Zone Info for Melbourne

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Melbourne

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