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

You can figure out when it's possible to plant portulaca in Piedmont by using the USDA zone info.

Planting Calendar for Portulaca

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

Since portulaca are not cold tolerant you must wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant portulaca in Piedmont 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 portulaca and expect a good harvest is probably August. If you wait any later than that and your portulaca may not have a chance to grow to maturity. You can get started a little bit earlier by starting your portulaca indoors.

Last Frost Date

In Piedmont the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 0°F.

Remember that USDA zone info for Piedmont is just an average and the actual date of last frost will vary from year to year. Half of the time in Piedmont it frosts late in the year after April 15 so always be ready to cover your portulaca in the event of a surprise late frost.

USDA Zone Info for Piedmont

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 Piedmont

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