What Growing Zone Is Heron Lake?
Our records indicate the United States Department of Agriculture has given Heron Lake a growing zone designation of 5a. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Heron Lake's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Heron Lake's weather data from 1991 - 2020 in their analysis.
Latest MN growing zone mapIf you are looking for plants suitable for growing in the Heron Lake area, head on over to our page on plants that grow well in Heron Lake, MN.
Cluck Around Sign
Whimsical sign for your chicken coop area.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Large Greenhouse Kit
Spacious greenhouse for extending your growing season.
Fiskars Garden Harvest Basket
Sturdy basket for collecting and carrying your garden harvest.
Latest MN growing zone mapThe growing zone is a measure of the lowest temperature that a plant can survive based on average lowest year temperatures, helping you to decide what plants would grow best in your particular climate. Since Heron Lake is in growing zone 5a this means that plants there can survive temperatures as low as -20 to -15 degrees Fahrenheit. Plants for Heron Lake's climate should be chosen with this in mind, or plants should be moved inside to keep their core temperature in the right range if necessary.
Some zones may have been changed by the USDA as of 2023. To see if the Heron Lake area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.
Half zone changes from 2012 to 2023The updated map shows that over half of the Southeast has warmed by about half a zone. For gardeners, that means you can now grow plants that tolerate a bit more heat and less frost than before. The tan areas reflect this shift. Meanwhile, the white areas had slight temperature changes, but not enough to move them into a new zone. In the Western U.S., a few spots shifted cooler. That’s not due to a colder climate, but because the new map uses a larger dataset, giving a more accurate picture of local conditions. It's important to keep track of these changes when planning your garden!
Hardiness Zone FAQ
Have questions about hardiness zones and what they mean for your garden? Check out our FAQ below for quick answers to common questions about USDA hardiness zones and how they affect plant selection in Heron Lake, MN.
The USDA hardiness zone is 5a for Heron Lake. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
Heron Lake's Growing Zone Details
USDA Growing Zone: 5a
Zip Codes: 56137
Longitude: -95.3197
Latitude: 43.7981
Lowest Avg Temperatures (F): -20 to -15
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Elegant brass watering can with classic design and durability.
Raised Garden Planter
Elevated planter for easy access and better drainage.
Worm Composting Kit
Complete kit for starting your own worm composting system.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Map of the Heron Lake Area
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Raised Garden Bed Kit
Easy-to-assemble raised garden bed for better soil control and drainage.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Hydroponic Garden Grow Kit
Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Raised Garden Planter
Elevated planter for easy access and better drainage.
Plants For Other States
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Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Shiitake Mushroom Kit
Grow your own delicious shiitake mushrooms at home.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Reusable Grow Bags
Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Cluck Around Sign
Whimsical sign for your chicken coop area.
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