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

A way of getting a good idea when it's the best time to plant dusty miller is to look at the USDA zone info for Wausau.

Planting Calendar for Dusty Miller

Frost tolerance for dusty miller:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Dusty Miller do well in cold which means that you can start planting them much earlier than plants that are more sensitive to the cold.

The earliest that you can plant dusty miller in Wausau is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant dusty miller and expect a good harvest is probably August. If you wait any later than that and your dusty miller may not have a chance to fully mature. If you are starting your dusty miller indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Wausau. You can expect an average low temperature of -25°F in the coldest months of winter.

Always keep in mind that USDA zone info for Wausau is an average and the actual date of last frost changes from year to year. Since half of the time in Wausau there is a last frost after May 15 be ready to cover your dusty miller if you have a surprise late frost.

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.