One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

In Rohnert Park you can estimate when you can plant bachelor buttons by checking out the USDA zone info.

Planting Calendar for Bachelor Buttons

Frost tolerance for bachelor buttons:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Bachelor Buttons do well in some cold which means that you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant bachelor buttons in Rohnert Park 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 bachelor buttons and expect a good harvest is probably October. Any later than that and your bachelor buttons may not have a chance to fully mature. If you are starting your bachelor buttons indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Rohnert Park may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Rohnert Park you get surprised by a frost after February 15 so be sure to be ready to cover your bachelor buttons in the event of a late frost.

USDA Zone Info for Rohnert Park

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 Rohnert Park

You may be interested in your other planting guides for Rohnert Park.