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.

In Winona you can determine when you can plant fiber optic grass by looking at the USDA zone info.

Planting Calendar for Fiber Optic Grass

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

It's a bad idea to plant fiber optic grass until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant fiber optic grass in Winona 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. If you wait any later than that and your fiber optic grass may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your fiber optic grass indoors.

Last Frost Date

The average date of last frost is May 15 in Winona. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Winona is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Winona it frosts late in the year after May 15 be ready to cover your fiber optic grass if you have a late frost.

USDA Zone Info for Winona

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 Winona

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