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

By using the USDA zone info for Sioux Center you will be able to estimate when it's a good idea to plant fanflower.

Planting Calendar for Fanflower

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

Since fanflower are not cold tolerant it's important to wait until after all chance of frost has passed before you can plant them.

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

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

Last Frost Date

In Sioux Center the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

It's important to remember that USDA zone info for Sioux Center is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Sioux Center there is a last frost after April 15 so make sure that you are ready to protect your fanflower if you have a late frost.

USDA Zone Info for Sioux Center

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°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 -15°F.

Plants to Grow in Sioux Center

You may be interested in your other planting guides for Sioux Center.