Before planting it is a good idea to find your USDA Zone info to figure out 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.

One way of making a decision about when you can plant fanflower is to use the USDA zone info for Sulphur.

Planting Calendar for Fanflower

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

It's probably a bad idea to plant fanflower until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant fanflower in Sulphur 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. You can get started a couple of weeks earlier by starting your fanflower indoors.

Last Frost Date

The average date of last frost is February 15 in Sulphur. You can expect an average low temperature of 20°F in the coldest months of winter.

It's important to remember that USDA zone info for Sulphur is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Sulphur there is a last frost after February 15 so always be ready to protect your fanflower if you have a surprise late frost.

USDA Zone Info for Sulphur

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 Sulphur

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