What Growing Zone Is Green Mountain?
Our records indicate the United States Department of Agriculture has given Green Mountain 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 Green Mountain's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Green Mountain's weather data from 1991 - 2020 in their analysis.
Latest IA growing zone mapIf you are looking for plants suitable for growing in the Green Mountain area, head on over to our page on plants that grow well in Green Mountain, IA.
Raised Garden Bed Kit
Easy-to-assemble raised garden bed for better soil control and drainage.
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.
Brass Watering Can
Elegant brass watering can with classic design and durability.
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
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 Green Mountain is in growing zone 5a this means that plants there can survive temperatures as low as -20 to -15 degrees Fahrenheit. Plants for Green Mountain'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 Green Mountain 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 Green Mountain, IA.
The USDA hardiness zone is 5a for Green Mountain. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
Green Mountain's Growing Zone Details
USDA Growing Zone: 5a
Longitude: -92.8196
Latitude: 42.1019
Lowest Avg Temperatures (F): -20 to -15
Large Greenhouse Kit
Spacious greenhouse for extending your growing season.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Fiskars Garden Harvest Basket
Sturdy basket for collecting and carrying your garden harvest.
Reusable Grow Bags
Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Map of the Green Mountain Area
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Shiitake Mushroom Kit
Grow your own delicious shiitake mushrooms at home.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Rustic Iron Garden Trellis
Sturdy trellis for supporting climbing plants and vines.
Fiskars Garden Harvest Basket
Sturdy basket for collecting and carrying your garden harvest.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
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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Wooden Chicken Coop
Spacious and secure home for your backyard chickens.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Seed Starting Trays
Perfect for starting seeds indoors before transplanting to your garden.
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