One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant bougainvillea in Rohnert Park can be figured out by looking at the USDA zone info.

Planting Calendar for Bougainvillea

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

Since bougainvillea require warm weather it's important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant bougainvillea in Rohnert Park 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. You probably don't want to wait any later than that or else your bougainvillea may not have a chance to fully mature. You can get started a few weeks earlier by starting your bougainvillea indoors.

Last Frost Date

On average the last frost is on February 15 in Rohnert Park. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Rohnert Park is not always accurate and the actual date of last frost changes from year to year. Half of the time in Rohnert Park there is a last frost after February 15 so just be sure to be ready to cover your bougainvillea in the event of one of those late frosts.

USDA Zone Info for Rohnert Park

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 Rohnert Park

You may be interested in your other planting guides for Rohnert Park.