One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You will be able to estimate when it's possible to plant fanflower by reviewing the USDA zone info for New Ulm.

Planting Calendar for Fanflower

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

You really shouldn't 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 New Ulm 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. 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 May 15 in New Ulm. 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 New Ulm is not always accurate and the actual date of last frost changes from year to year. Since half of the time in New Ulm last frost occurs after May 15 be ready to cover your fanflower in the event of one of those late frosts.

USDA Zone Info for New Ulm

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 New Ulm

You may be interested in your other planting guides for New Ulm.