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.

The USDA zone info for Berlin should be reffered to in order to estimate when to plant trachelium.

Planting Calendar for Trachelium

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

It's not a good idea to plant trachelium until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant trachelium in Berlin 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 trachelium and expect a good harvest is probably August. If you wait any later than that and your trachelium may not have a chance to really do well. If you are starting your trachelium indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Berlin. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Berlin is an average the actual date of last frost will vary from year to year. Half of the time in Berlin you get surprised by a frost after April 15 so be sure to be ready to cover your trachelium if you have a late frost.

USDA Zone Info for Berlin

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 Berlin

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