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

One way of determining when you can plant purslane is to use the USDA zone info for Posen.

Planting Calendar for Purslane

Frost tolerance for purslane:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Purslane are barely cold tolerant which means that you can start planting them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant purslane in Posen is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant purslane and expect a good harvest is probably August. Any later than that and your purslane may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your purslane indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Posen. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Posen is an average the actual date of last frost changes from year to year. Half of the time in Posen last frost occurs after April 15 so make sure that you are ready to cover your purslane if you have one of those late frosts.

USDA Zone Info for Posen

Here is the info for USDA Zone 6a.

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

Plants to Grow in Posen

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