Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when it's a good idea to plant bougainvillea is to use the USDA zone info for Orange.

Planting Calendar for Bougainvillea

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

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

The earliest that you can plant bougainvillea in Orange 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 bougainvillea and expect a good harvest is probably September. Any later than that and your bougainvillea may not have a chance to really do well. You can get started a little bit earlier by starting your bougainvillea indoors.

Last Frost Date

The average date of last frost is January 31 in Orange. It might get as low as 30°F during the coldest months of winter.

Always keep in mind that USDA zone info for Orange may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Orange last frost occurs after January 31 be ready to cover your bougainvillea if you have a surprise late frost.

USDA Zone Info for Orange

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 Orange

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