What Growing Zone Is St. Paul?
Our records indicate the United States Department of Agriculture has given St. Paul a growing zone designation of 6a. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in St. Paul's climate based on the average extreme annual temperature. .Our data is based on the latest 2023 USDA maps, which used St. Paul's weather data from 1991 - 2020 in their analysis.
If you are looking for plants suitable for growing in the St. Paul area, head on over to our page on plants that grow well in St. Paul, IA.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Self Watering Plant Pots
Innovative pots that maintain optimal moisture levels.
Wooden Chicken Coop
Spacious and secure home for your backyard chickens.
Hydroponic Garden Grow Kit
Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
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 St. Paul is in growing zone 6a this means that plants there can survive temperatures as low as -10 to -5 degrees Fahrenheit. Plants for St. Paul'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 St. Paul 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!
St. Paul's Growing Zone Details
USDA Growing Zone: 6a
Zip Codes: 52657
Longitude: -91.5164
Latitude: 40.7678
Lowest Avg Temperatures (F): -10 to -5
Metal Seed Storage Box
Organized storage solution for your seed collection.
Raised Garden Planter
Elevated planter for easy access and better drainage.
Large Greenhouse Kit
Spacious greenhouse for extending your growing season.
Hydroponic Garden Grow Kit
Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
Rustic Iron Garden Trellis
Sturdy trellis for supporting climbing plants and vines.
Map of the St. Paul Area
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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.
Self Watering Plant Pots
Innovative pots that maintain optimal moisture levels.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Hoeing Ain't Easy Garden Sign
Fun and decorative garden sign to add personality to your space.
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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Seed Starting Trays
Perfect for starting seeds indoors before transplanting to your garden.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Worm Composting Kit
Complete kit for starting your own worm composting system.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
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