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When to Plant Thunbergia in Rancho Mirage, CA

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when you can plant thunbergia is to refer to the USDA zone info for Rancho Mirage.


Planting Calendar for Thunbergia

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

Thunbergia require warm weather which tells us that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant thunbergia
Possibly ok, but a risky time to plant thunbergia
Probably not a good time to plant thunbergia

The earliest that you can plant thunbergia in Rancho Mirage 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. You probably don't want to wait any later than that or else your thunbergia may not have a chance to really do well. If you are starting your thunbergia indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in Rancho Mirage. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that USDA zone info for Rancho Mirage is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Rancho Mirage you get a frost after February 15 so make sure that you are prepared to protect your thunbergia in the event of a late frost.

USDA Zone Info for Rancho Mirage

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 Low25°F
Highest Expected Low30°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 Rancho Mirage

You may be interested in your other planting guides for Rancho Mirage.