One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of figuring out when it's the best time to plant brunfelsia is to look at the USDA zone info for Riverside.

Planting Calendar for Brunfelsia

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

Brunfelsia do not do well in cold weather which means that it is necessary to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant brunfelsia in Riverside is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant brunfelsia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your brunfelsia may not have a chance to really do well. 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

The average date of last frost is April 15 in Riverside. It might get as low as -10°F during the coldest months of winter.

Always keep in mind that USDA zone info for Riverside is an average and the actual date of last frost is different every year. Half of the time in Riverside you get a frost after April 15 so make sure that you are ready to protect your brunfelsia if you have a surprise late frost.

USDA Zone Info for Riverside

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Riverside

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