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 first opportunity to plant ornamental grasses in Wausau should be figured out by referring to the USDA zone info.

Planting Calendar for Ornamental Grasses

Frost tolerance for ornamental grasses:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Ornamental Grasses do ok in moderate cold which tells us that you can get them planted just a bit earlier than more sensitive plants.

The earliest that you can plant ornamental grasses in Wausau 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 ornamental grasses and expect a good harvest is probably August. You probably don't want to wait any later than that or else your ornamental grasses may not have a chance to fully mature. You can get started a few weeks earlier by starting your ornamental grasses indoors.

Last Frost Date

On average the last frost has passed is on May 15 in Wausau. You should expect an average low temperature of -25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Wausau may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Wausau there is a last frost after May 15 so make sure that you are ready to cover your ornamental grasses in the event of one of those late frosts.

USDA Zone Info for Wausau

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 Wausau

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