One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By looking at the USDA zone info for Campbellsville you should be able to figure out when it's possible to plant dusty miller.

Planting Calendar for Dusty Miller

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

Since dusty miller are very cold tolerant you can plant them much earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant dusty miller in Campbellsville is February. However, you really should wait until March 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 September. Any later than that and your dusty miller may not have a chance to grow to maturity. Starting your dusty miller indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Campbellsville. In the coldest months of winter you can expect an average low temperature of -5°F.

Remember that USDA zone info for Campbellsville is just an average and the actual date of last frost is different every year. Since half of the time in Campbellsville you get surprised by a frost after April 15 be ready to protect your dusty miller if you have one of those late frosts.

USDA Zone Info for Campbellsville

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Campbellsville

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