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.

The best time to plant fanflower in Crystal Lake should be estimated by using the USDA zone info.

Planting Calendar for Fanflower

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

You should not plant fanflower until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant fanflower in Crystal Lake 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. If you wait any later than that and your fanflower may not have a chance to really do well. Starting your fanflower indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Crystal Lake. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Crystal Lake is an average and the actual date of last frost will vary from year to year. Half of the time in Crystal Lake there is a last frost after April 15 so be sure to be ready to cover your fanflower if you have a late frost.

USDA Zone Info for Crystal Lake

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 Crystal Lake

You may be interested in your other planting guides for Crystal Lake.