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

It's possible to determine when you can plant trailing portulaca by reviewing the USDA zone info for Pittsburg.

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 do not do well in cold weather which tells us that it is necessary 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 Pittsburg 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 grow to maturity. If you are starting your trailing portulaca indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Pittsburg. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Pittsburg is an average the actual date of last frost will vary from year to year. Half of the time in Pittsburg it frosts late in the year after March 15 so make sure that you are prepared to cover your trailing portulaca if you have one of those late frosts.

USDA Zone Info for Pittsburg

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 Pittsburg

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