Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to determine when to plant fanflower by referring to the USDA zone info for Barstow.

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's necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant fanflower in Barstow 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. If you wait any later than that and your fanflower may not have a chance to fully mature. If you are starting your fanflower indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Barstow the average date of last frost happens on February 15. You can expect an average low temperature of 20°F in the coldest months of winter.

Keep in mind that USDA zone info for Barstow is just an average and the actual date of last frost is different every year. Half of the time in Barstow you get a frost after February 15 so make sure that you are ready to cover your fanflower if you have a surprise late frost.

USDA Zone Info for Barstow

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 Barstow

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