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When to Plant Fanflower in Thief River Falls, MN

One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Thief River Falls it's a good idea to estimate when you can plant fanflower.


Planting Calendar for Fanflower

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

Fanflower require warm weather which means that you need to wait until it warms up after the last frost before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant fanflower
Possibly ok, but a risky time to plant fanflower
Probably not a good time to plant fanflower

The earliest that you can plant fanflower in Thief River Falls 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. You probably don't want to wait any later than that or else your fanflower may not have a chance to really do well. If you are starting your fanflower indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on May 15 in Thief River Falls. You can expect an average low temperature of -35°F in the coldest months of winter.

It's important to remember that USDA zone info for Thief River Falls is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Thief River Falls last frost occurs after May 15 be ready to protect your fanflower if you have a late frost.

USDA Zone Info for Thief River Falls

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-35°F
Highest Expected Low-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Thief River Falls

You may be interested in your other planting guides for Thief River Falls.