The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to estimate when you can plant trailing portulaca by referring to the USDA zone info for Rock Hill.

Planting Calendar for Trailing Portulaca

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

You can not plant trailing portulaca until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant trailing portulaca in Rock Hill 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 really do well. You can get started a little bit earlier by starting your trailing portulaca indoors.

Last Frost Date

The average date of last frost is March 15 in Rock Hill. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Rock Hill may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Rock Hill you get a frost after March 15 so just be sure to be ready to cover your trailing portulaca in the event of a surprise late frost.

USDA Zone Info for Rock Hill

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Rock Hill

You may be interested in your other planting guides for Rock Hill.