One of the first steps you take when you are figuring out 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.

You should be able to determine when it's possible to plant bachelor buttons by looking at the USDA zone info for Zone 9b.

Planting Calendar for Bachelor Buttons

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

Since bachelor buttons do well in moderate cold you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant bachelor buttons in Zone 9b 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 really do well. If you are starting your bachelor buttons indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Zone 9b. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Zone 9b is an average the actual date of last frost changes from year to year. Half of the time in Zone 9b you get a frost after February 15 so always be ready to cover your bachelor buttons in the event of a late frost.

USDA Zone Info for Zone 9b

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 Zone 9b

You may be interested in your other planting guides for Zone 9b.