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

You can estimate when it's a good idea to plant fanflower in Rockford by reviewing the USDA zone info.

Planting Calendar for Fanflower

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

Since fanflower require warm weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant fanflower in Rockford 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. Any later than that and your fanflower may not have a chance to really do well. You can get started a little bit earlier by starting your fanflower indoors.

Last Frost Date

On average the last frost is on April 15 in Rockford. You can expect an average low temperature of -15°F in the coldest months of winter.

Remember that USDA zone info for Rockford is just an average and the actual date of last frost will vary from year to year. Half of the time in Rockford you get a frost after April 15 so always be ready to protect your fanflower in the event of a surprise late frost.

USDA Zone Info for Rockford

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Rockford

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