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When to Plant Blue Throatwort in Bemidji, MN

One of the best tools that you have as gardeners to help us figure out 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.

One way of getting a good idea when it's a good idea to plant blue throatwort is to examine the USDA zone info for Bemidji.


Planting Calendar for Blue Throatwort

Frost tolerance for blue throatwort: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

You really shouldn't plant blue throatwort until after the last frost when the weather gets warmer because they do not do well in cold weather.

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

The earliest that you can plant blue throatwort in Bemidji 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 blue throatwort and expect a good harvest is probably August. If you wait any later than that and your blue throatwort may not have a chance to grow to maturity. Starting your blue throatwort indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Bemidji the average date of last frost happens on May 15. In the coldest months of winter you should expect an average low temperature of -35°F.

Always keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Bemidji and it can change quite a bit from year to year. Since half of the time in Bemidji there is a last frost after May 15 be ready to cover your blue throatwort in the event of a surprise late frost.

USDA Zone Info for Bemidji

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 Bemidji

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