The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when it's a good idea to plant dusty miller is to refer to the USDA zone info for Warrenton.

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 are one of those plants that can tolerate quite a bit of cold weather which tells us that you can get them planted much earlier than more sensitive plants.

The earliest that you can plant dusty miller in Warrenton is January. However, you really should wait until February 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 October. Any later than that and your dusty miller may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your dusty miller indoors.

Last Frost Date

In Warrenton the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

Remember that USDA zone info for Warrenton is an average and the actual date of last frost is different every year. Half of the time in Warrenton you get surprised by a frost after February 15 so make sure that you are prepared to protect your dusty miller in the event of a late frost.

USDA Zone Info for Warrenton

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Warrenton

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