Before planting it is a good idea to find your USDA Zone info to determine 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.

The best time to plant portulaca in Sheffield can be estimated by looking at 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 really should wait until after the last frost when the weather gets warmer before you can plant them.

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

Last Frost Date

In Sheffield the average date of last frost happens on April 15. You can expect an average low temperature of 5°F in the coldest months of winter.

It's important to remember that USDA zone info for Sheffield is not always accurate and the actual date of last frost is different every year. Since half of the time in Sheffield you get a frost after April 15 be ready to cover your portulaca in the event of a surprise late frost.

USDA Zone Info for Sheffield

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Sheffield

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