One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's possible to plant carrots in International Falls by reviewing the USDA zone info.

Planting Calendar for Carrots

Frost tolerance for carrots:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Carrots do well in moderate cold which tells us that you can plant them earlier than plants that are more sensitive to the cold.

The earliest that you can plant carrots in International Falls is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant carrots and expect a good harvest is probably August. If you wait any later than that and your carrots may not have a chance to really do well. If you are starting your carrots indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is May 15 in International Falls. In the coldest months of winter you should expect an average low temperature of -40°F.

Since the USDA zone info for International Falls may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in International Falls last frost occurs after May 15 so be sure to be ready to cover your carrots if you have a surprise late frost.

USDA Zone Info for International Falls

Here is the info for USDA Zone 3a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-40°F
Highest Expected Low	-35°F

This means that on a really cold year, the coldest it will get is -40°F. On most years you should be prepared to experience lows near -35°F.

Plants to Grow in International Falls

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