What Growing Zone Is Garwin?
Our records indicate the United States Department of Agriculture has given Garwin 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 Garwin's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Garwin's weather data from 1991 - 2020 in their analysis.
Latest IA growing zone mapIf you are looking for plants suitable for growing in the Garwin area, head on over to our page on plants that grow well in Garwin, IA.
Raised Garden Bed Kit
Easy-to-assemble raised garden bed for better soil control and drainage.
Raised Garden Planter
Elevated planter for easy access and better drainage.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Hydroponic Garden Grow Kit
Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
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 Garwin is in growing zone 5a this means that plants there can survive temperatures as low as -20 to -15 degrees Fahrenheit. Plants for Garwin'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 Garwin area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.
The 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 Garwin, IA.
The USDA hardiness zone is 5a for Garwin. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
Garwin's Growing Zone Details
USDA Growing Zone: 5a
Zip Codes:
Longitude: -92.6791
Latitude: 42.0935
Lowest Avg Temperatures (F): -20 to -15
Raised Garden Planter
Elevated planter for easy access and better drainage.
Seed Starting Trays
Perfect for starting seeds indoors before transplanting to your garden.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Reusable Grow Bags
Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Worm Composting Kit
Complete kit for starting your own worm composting system.
Map of the Garwin Area
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Wooden Chicken Coop
Spacious and secure home for your backyard chickens.
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
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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Raised Garden Planter
Elevated planter for easy access and better drainage.
Wooden Chicken Coop
Spacious and secure home for your backyard chickens.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
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