One of the first steps you take when you are making a decision about 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 Holtville you can figure out when it's possible to plant crossandra by looking at the USDA zone info.

Planting Calendar for Crossandra

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

Since crossandra are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant crossandra in Holtville 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. You probably don't want to wait any later than that or else your crossandra may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your crossandra indoors.

Last Frost Date

The average date of last frost is January 31 in Holtville. In the coldest months of winter you should expect an average low temperature of 30°F.

Since the USDA zone info for Holtville may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Holtville you get a frost after January 31 be ready to cover your crossandra if you have a surprise late frost.

USDA Zone Info for Holtville

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 Holtville

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