One of the first steps you take when you are getting a good idea your gardening schedule is find your 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 possible to figure out when it's possible to plant fanflower by checking out the USDA zone info for Sonora.

Planting Calendar for Fanflower

Frost tolerance for fanflower:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Fanflower are not cold tolerant which means that it is necessary to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant fanflower in Sonora is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant fanflower and expect a good harvest is probably September. You probably don't want to wait any later than that or else your fanflower may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your fanflower indoors.

Last Frost Date

On average the last frost is on February 15 in Sonora. In the coldest months of winter you should expect an average low temperature of 20°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Sonora and it will vary from year to year. Half of the time in Sonora you get a frost after February 15 so be sure to be ready to cover your fanflower in the event of one of those late frosts.

USDA Zone Info for Sonora

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 Sonora

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