What Growing Zone Is Potosi?
Our records indicate the United States Department of Agriculture has given Potosi a growing zone designation of 6b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Potosi's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Potosi's weather data from 1991 - 2020 in their analysis.
Latest MO growing zone mapIf you are looking for plants suitable for growing in the Potosi area, head on over to our page on plants that grow well in Potosi, MO.
Steel Hori Hori Weeding Knife
Versatile Japanese-style gardening knife for weeding and planting.
Large Greenhouse Kit
Spacious greenhouse for extending your growing season.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
Brass Watering Can
Elegant brass watering can with classic design and durability.
Latest MO 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 Potosi is in growing zone 6b this means that plants there can survive temperatures as low as -5 to 0 degrees Fahrenheit. Plants for Potosi'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 Potosi 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 Potosi, MO.
The USDA hardiness zone is 6b for Potosi. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
Potosi's Growing Zone Details
USDA Growing Zone: 6b
Longitude: -90.775
Latitude: 37.9337
Lowest Avg Temperatures (F): -5 to 0
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Hoeing Ain't Easy Garden Sign
Fun and decorative garden sign to add personality to your space.
Shiitake Mushroom Kit
Grow your own delicious shiitake mushrooms at home.
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
Large Greenhouse Kit
Spacious greenhouse for extending your growing season.
Map of the Potosi Area
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Rustic Iron Garden Trellis
Sturdy trellis for supporting climbing plants and vines.
Metal Seed Storage Box
Organized storage solution for your seed collection.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Cluck Around Sign
Whimsical sign for your chicken coop area.
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
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Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
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.
Shiitake Mushroom Kit
Grow your own delicious shiitake mushrooms at home.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
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