Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to figure out when to plant trailing portulaca by using the USDA zone info for Audubon.

Planting Calendar for Trailing Portulaca

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

Trailing Portulaca require warm weather which means that it is important to 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 Audubon is April. However, you really should wait until May 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 August. You probably don't want to wait any later than that or else your trailing portulaca may not have a chance to grow to maturity. You can get started a little bit earlier by starting your trailing portulaca indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Audubon. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Audubon is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Audubon you get surprised by a frost after April 15 be ready to cover your trailing portulaca in the event of a surprise late frost.

USDA Zone Info for Audubon

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Audubon

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