One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to figure out when to plant bachelor buttons by looking at the USDA zone info for San Dimas.

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 mild cold which means that you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant bachelor buttons in San Dimas 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. You probably don't want to wait any later than that or else your bachelor buttons may not have a chance to grow to maturity. You can get started a little bit earlier by starting your bachelor buttons indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in San Dimas. You should expect an average low temperature of 30°F in the coldest months of winter.

Just be sure to remember that USDA zone info for San Dimas is an average and the actual date of last frost is different every year. Half of the time in San Dimas last frost occurs after January 31 so always be ready to cover your bachelor buttons if you have a surprise late frost.

USDA Zone Info for San Dimas

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in San Dimas

You may be interested in your other planting guides for San Dimas.