The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of getting a good idea when it's a good idea to plant fiber optic grass is to refer to the USDA zone info for Berlin.

Planting Calendar for Fiber Optic Grass

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

It's a bad idea to plant fiber optic grass until after all chance of frost has passed because they require warm weather.

The earliest that you can plant fiber optic grass 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 fiber optic grass and expect a good harvest is probably August. You probably don't want to wait any later than that or else your fiber optic grass may not have a chance to grow to maturity. If you are starting your fiber optic grass indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Berlin. It might get as low as -25°F during the coldest months of winter.

Remember that USDA zone info for Berlin is not always accurate and the actual date of last frost changes from year to year. Half of the time in Berlin there is a last frost after May 15 so be sure to be ready to protect your fiber optic grass in the event of a surprise 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.