What Growing Zone Is Lake St. Louis?
Our records indicate the United States Department of Agriculture has given Lake St. Louis 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 Lake St. Louis's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Lake St. Louis's weather data from 1991 - 2020 in their analysis.
Latest MO growing zone mapIf you are looking for plants suitable for growing in the Lake St. Louis area, head on over to our page on plants that grow well in Lake St. Louis, MO.
Shiitake Mushroom Kit
Grow your own delicious shiitake mushrooms at home.
Raised Garden Planter
Elevated planter for easy access and better drainage.
Self Watering Plant Pots
Innovative pots that maintain optimal moisture levels.
Large Greenhouse Kit
Spacious greenhouse for extending your growing season.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
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 Lake St. Louis is in growing zone 6b this means that plants there can survive temperatures as low as -5 to 0 degrees Fahrenheit. Plants for Lake St. Louis'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 Lake St. Louis 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 Lake St. Louis, MO.
The USDA hardiness zone is 6b for Lake St. Louis. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
Lake St. Louis's Growing Zone Details
USDA Growing Zone: 6b
Zip Codes: 63367
Longitude: -90.7886
Latitude: 38.7846
Lowest Avg Temperatures (F): -5 to 0
Shiitake Mushroom Kit
Grow your own delicious shiitake mushrooms at home.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Hydroponic Garden Grow Kit
Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Worm Composting Kit
Complete kit for starting your own worm composting system.
Map of the Lake St. Louis Area
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Hydroponic Garden Grow Kit
Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Metal Seed Storage Box
Organized storage solution for your seed collection.
Reusable Grow Bags
Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
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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Brass Watering Can
Elegant brass watering can with classic design and durability.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Self Watering Plant Pots
Innovative pots that maintain optimal moisture levels.
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
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