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When to Plant Bee Balm in Thief River Falls, MN

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.

You will be able to estimate when it's a good idea to plant bee balm by using the USDA zone info for Thief River Falls.


Planting Calendar for Bee Balm

Frost tolerance for bee balm: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Since bee balm are barely cold tolerant you can plant them slightly earlier in the year than other plants that might not handle the cold.

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

The earliest that you can plant bee balm in Thief River Falls 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 bee balm and expect a good harvest is probably August. You probably don't want to wait any later than that or else your bee balm may not have a chance to grow to maturity. If you are starting your bee balm indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Thief River Falls the average date of last frost happens on May 15. It might get as low as -35°F during the coldest months of winter.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Thief River Falls and it can change quite a bit from year to year. Since half of the time in Thief River Falls it frosts late in the year after May 15 be ready to cover your bee balm in the event of a surprise 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.