The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Powell you can figure out when it's a good idea to plant dusty miller by referring to the USDA zone info.

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 tend to make it in cold weather which means that you can plant them earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant dusty miller in Powell 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. You probably don't want to wait any later than that or else your dusty miller may not have a chance to grow to maturity. If you are starting your dusty miller indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Powell the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Powell is an average and the actual date of last frost is different every year. Since half of the time in Powell you get surprised by a frost after May 15 be ready to cover your dusty miller if you have one of those late frosts.

USDA Zone Info for Powell

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 Powell

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