Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Winters can be looked at to estimate 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.

You can plant dusty miller much earlier in the year because they are very cold tolerant.

The earliest that you can plant dusty miller in Winters 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. If you wait any later than that and your dusty miller may not have a chance to really do well. You can get started a few weeks earlier by starting your dusty miller indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Winters. It might get as low as 25°F during the coldest months of winter.

Always keep in mind that USDA zone info for Winters is just an average and the actual date of last frost will vary from year to year. Half of the time in Winters you get surprised by a frost after February 15 so be sure to be ready to protect your dusty miller if you have a late frost.

USDA Zone Info for Winters

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Winters

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