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.

In Costa Mesa you can determine when you can plant angelonia by looking at the USDA zone info.

Planting Calendar for Angelonia

Frost tolerance for angelonia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant angelonia a bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant angelonia 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 angelonia and expect a good harvest is probably September. If you wait any later than that and your angelonia may not have a chance to grow to maturity. If you are starting your angelonia 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.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Costa Mesa and it can change quite a bit from year to year. Half of the time in Costa Mesa you get surprised by a frost after January 31 so make sure that you are ready to protect your angelonia in the event of 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.