One of the first steps you take when you are determining 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.

By checking out the USDA zone info for Brea it's a good idea to determine when you can plant black eyed susans.

Planting Calendar for Black Eyed Susans

Frost tolerance for black eyed susans:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since black eyed susans do not do well in cold weather it is important to wait until after the last frost before you can plant them.

The earliest that you can plant black eyed susans in Brea 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 black eyed susans and expect a good harvest is probably September. You probably don't want to wait any later than that or else your black eyed susans may not have a chance to fully mature. You can get started a little bit earlier by starting your black eyed susans indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in Brea. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Brea is just an average the actual date of last frost will vary from year to year. Since half of the time in Brea it frosts late in the year after January 31 be ready to cover your black eyed susans in the event of a late frost.

USDA Zone Info for Brea

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 Brea

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