Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Owatonna should be used to determine when to plant fiber optic grass.

Planting Calendar for Fiber Optic Grass

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

You should not plant fiber optic grass until after the last frost because they do not do well in cold weather.

The earliest that you can plant fiber optic grass in Owatonna 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 grow to maturity. Starting your fiber optic grass indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Owatonna. In the coldest months of winter you should expect an average low temperature of -25°F.

Since the USDA zone info for Owatonna is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Owatonna it frosts late in the year after May 15 so just be sure to be ready to cover your fiber optic grass in the event of a late frost.

USDA Zone Info for Owatonna

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 Owatonna

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