What Growing Zone Is Harris?
Our records indicate the United States Department of Agriculture has given Harris 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 Harris's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Harris's weather data from 1991 - 2020 in their analysis.
Latest IA growing zone mapIf you are looking for plants suitable for growing in the Harris area, head on over to our page on plants that grow well in Harris, IA.
Hydroponic Garden Grow Kit
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Hoeing Ain't Easy Garden Sign
Fun and decorative garden sign to add personality to your space.
Brass Watering Can
Elegant brass watering can with classic design and durability.
Cluck Around Sign
Whimsical sign for your chicken coop area.
Rustic Iron Garden Trellis
Sturdy trellis for supporting climbing plants and vines.
Latest IA 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 Harris is in growing zone 5a this means that plants there can survive temperatures as low as -20 to -15 degrees Fahrenheit. Plants for Harris'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 Harris 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 Harris, IA.
The USDA hardiness zone is 5a for Harris. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
Harris's Growing Zone Details
USDA Growing Zone: 5a
Zip Codes: 51345
Longitude: -95.4372
Latitude: 43.4451
Lowest Avg Temperatures (F): -20 to -15
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Rustic Iron Garden Trellis
Sturdy trellis for supporting climbing plants and vines.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Map of the Harris Area
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Hoeing Ain't Easy Garden Sign
Fun and decorative garden sign to add personality to your space.
Cluck Around Sign
Whimsical sign for your chicken coop area.
Rustic Iron Garden Trellis
Sturdy trellis for supporting climbing plants and vines.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Brass Watering Can
Elegant brass watering can with classic design and durability.
Plants For Other States
Looking for the best plants in a different area of the United States? Click on a button below to find plants that are ideal for that state's temperatures.
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Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Large Greenhouse Kit
Spacious greenhouse for extending your growing season.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Brass Watering Can
Elegant brass watering can with classic design and durability.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
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