One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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 will be able to estimate when you can plant fanflower by referring to the USDA zone info for Healdsburg.

Planting Calendar for Fanflower

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

Fanflower do not do well in cold weather which means that you really should 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 Healdsburg 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. Any later than that and your fanflower may not have a chance to really do well. You can get started a couple of weeks earlier by starting your fanflower indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Healdsburg. In the coldest months of winter you should expect an average low temperature of 25°F.

Remember that USDA zone info for Healdsburg may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Healdsburg it frosts late in the year after February 15 be ready to cover your fanflower if you have one of those late frosts.

USDA Zone Info for Healdsburg

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 Healdsburg

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