One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

In Calexico you can figure out when it's possible to plant trailing portulaca by referring to the USDA zone info.

Planting Calendar for Trailing Portulaca

Frost tolerance for trailing portulaca:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Trailing Portulaca require warm weather which means that you really should wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant trailing portulaca in Calexico 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 trailing portulaca and expect a good harvest is probably September. Any later than that and your trailing portulaca may not have a chance to really do well. Starting your trailing portulaca indoors is a great way to get them started a few weeks earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Calexico may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Calexico you get a frost after January 31 so just be sure to be ready to cover your trailing portulaca if you have one of those late frosts.

USDA Zone Info for Calexico

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 Calexico

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