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

A way of determining when it's a good idea to plant fiber optic grass is to refer to the USDA zone info for River Forest.

Planting Calendar for Fiber Optic Grass

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

You should not 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 River Forest 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 fiber optic grass and expect a good harvest is probably August. If you wait any later than that and your fiber optic grass may not have a chance to really do well. You can get started a couple of weeks earlier by starting your fiber optic grass indoors.

Last Frost Date

On average the last frost is on April 15 in River Forest. It might get as low as -10°F during the coldest months of winter.

Just be sure to remember that USDA zone info for River Forest is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in River Forest last frost occurs after April 15 so be sure to be ready to cover your fiber optic grass if you have one of those late frosts.

USDA Zone Info for River Forest

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 River Forest

You may be interested in your other planting guides for River Forest.