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

A way of figuring out when it's possible to plant brunfelsia is to consult the USDA zone info for Walnut Creek.

Planting Calendar for Brunfelsia

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

You should not plant brunfelsia until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant brunfelsia in Walnut Creek 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 brunfelsia and expect a good harvest is probably September. If you wait any later than that and your brunfelsia may not have a chance to fully mature. If you are starting your brunfelsia 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 Walnut Creek. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Walnut Creek is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Walnut Creek you get surprised by a frost after February 15 be ready to cover your brunfelsia if you have one of those late frosts.

USDA Zone Info for Walnut Creek

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 Walnut Creek

You may be interested in your other planting guides for Walnut Creek.