The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. 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 it's possible to plant portulaca by referring to the USDA zone info for Hampstead.

Planting Calendar for Portulaca

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

Portulaca are not cold tolerant which means that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant portulaca in Hampstead 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. Any later than that and your portulaca may not have a chance to fully mature. You can get started a few weeks earlier by starting your portulaca indoors.

Last Frost Date

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

Since the USDA zone info for Hampstead is an average the actual date of last frost changes from year to year. Since half of the time in Hampstead it frosts late in the year after April 15 be ready to protect your portulaca in the event of a surprise late frost.

USDA Zone Info for Hampstead

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 Hampstead

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