The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Mankato can be read to estimate when to plant fanflower.

Planting Calendar for Fanflower

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

You should not plant fanflower until after the last frost because they do not do well in cold weather.

The earliest that you can plant fanflower in Mankato is May. However, you really should wait until June 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. Any later than that and your fanflower may not have a chance to grow to maturity. 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

The average date of last frost is May 15 in Mankato. You should expect an average low temperature of -25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Mankato is an average and the actual date of last frost changes from year to year. Half of the time in Mankato you get surprised by a frost after May 15 so be sure to be ready to protect your fanflower in the event of a late frost.

USDA Zone Info for Mankato

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Mankato

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