One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's possible to plant crossandra in Costa Mesa by referring to the USDA zone info.

Planting Calendar for Crossandra

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

It's not a good idea to plant crossandra until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant crossandra 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 crossandra and expect a good harvest is probably September. Any later than that and your crossandra may not have a chance to grow to maturity. You can get started a little bit earlier by starting your crossandra indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Costa Mesa. It might get as low as 35°F during the coldest months of winter.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Costa Mesa and it is different every year. Since half of the time in Costa Mesa it frosts late in the year after January 31 be ready to cover your crossandra if you have a late frost.

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.