One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant tithonia in Brea can be figured out by referring to the USDA zone info.

Planting Calendar for Tithonia

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

Since tithonia do not do well in cold weather you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant tithonia 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 tithonia and expect a good harvest is probably September. If you wait any later than that and your tithonia may not have a chance to grow to maturity. Starting your tithonia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Brea may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Brea there is a last frost after January 31 so always be ready to cover your tithonia if you have one of those late frosts.

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.