One of the first steps you take when you are making a decision about 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.

One way of getting a good idea when you can plant brachycome is to check out the USDA zone info for Costa Mesa.

Planting Calendar for Brachycome

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

Since brachycome require warm weather you have to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant brachycome in Costa Mesa 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 brachycome and expect a good harvest is probably September. Any later than that and your brachycome may not have a chance to fully mature. If you are starting your brachycome 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 January 31 in Costa Mesa. In the coldest months of winter you should expect an average low temperature of 35°F.

Since the USDA zone info for Costa Mesa is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Costa Mesa you get surprised by a frost after January 31 be ready to cover your brachycome in the event of one of those late frosts.

USDA Zone Info for Costa Mesa

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Costa Mesa

You may be interested in your other planting guides for Costa Mesa.