One of the best tools that you have as gardeners to help us estimate 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.

One way of making a decision about when to plant trailing portulaca is to consult the USDA zone info for Fresno.

Planting Calendar for Trailing Portulaca

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

Trailing Portulaca do not do well in cold weather which means that it is important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant trailing portulaca in Fresno is March. However, you really should wait until April 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 fully mature. You can get started a few weeks earlier by starting your trailing portulaca indoors.

Last Frost Date

The average date of last frost is February 15 in Fresno. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for Fresno may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Fresno there is a last frost after February 15 be ready to cover your trailing portulaca in the event of a surprise late frost.

USDA Zone Info for Fresno

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Fresno

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