Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of figuring out when to plant bougainvillea is to use the USDA zone info for Desert Hot Springs.

Planting Calendar for Bougainvillea

Frost tolerance for bougainvillea:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant bougainvillea until after the last frost because they require warm weather.

The earliest that you can plant bougainvillea in Desert Hot Springs 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 bougainvillea and expect a good harvest is probably September. Any later than that and your bougainvillea may not have a chance to grow to maturity. If you are starting your bougainvillea indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on February 15 in Desert Hot Springs. You should expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for Desert Hot Springs is an average and the actual date of last frost is different every year. Since half of the time in Desert Hot Springs last frost occurs after February 15 be ready to protect your bougainvillea if you have one of those late frosts.

USDA Zone Info for Desert Hot Springs

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 Desert Hot Springs

You may be interested in your other planting guides for Desert Hot Springs.