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.

A common way of determining when it's the best time to plant trailing portulaca is to consult the USDA zone info for Berlin.

Planting Calendar for Trailing Portulaca

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

Since trailing portulaca are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant trailing portulaca in Berlin is May. However, you really should wait until June 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. You probably don't want to wait any later than that or else your trailing portulaca may not have a chance to fully mature. You can get started a little bit earlier by starting your trailing portulaca indoors.

Last Frost Date

The average date of last frost is May 15 in Berlin. You can expect an average low temperature of -25°F in the coldest months of winter.

It's important to remember that USDA zone info for Berlin may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Berlin you get surprised by a frost after May 15 so make sure that you are prepared to protect your trailing portulaca if you have a late frost.

USDA Zone Info for Berlin

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Berlin

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