Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of making a decision about when it's a good idea to plant trailing portulaca is to look at the USDA zone info for Kingsport.

Planting Calendar for Trailing Portulaca

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

You really shouldn't plant trailing portulaca until after all chance of frost has passed because they require warm weather.

The earliest that you can plant trailing portulaca in Kingsport 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. If you wait 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 little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Kingsport. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Kingsport is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Kingsport there is a last frost after April 15 so just be sure to be ready to cover your trailing portulaca in the event of one of those late frosts.

USDA Zone Info for Kingsport

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 Kingsport

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