What Growing Zone Is St. Louis?

Our records indicate the United States Department of Agriculture has given St. Louis 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. Louis's climate based on the average extreme annual temperature. .Our data is based on the latest 2023 USDA maps, which used St. Louis's weather data from 1991 - 2020 in their analysis.

If you are looking for plants suitable for growing in the St. Louis area, head on over to our page on plants that grow well in St. Louis, MI.

Steel Hori Hori Weeding Knife

Versatile Japanese-style gardening knife for weeding and planting.

Metal Seed Storage Box

Organized storage solution for your seed collection.

Self Watering Plant Pots

Innovative pots that maintain optimal moisture levels.

Stainless Steel Garden Tool Set

Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

The 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. Louis is in growing zone 6a this means that plants there can survive temperatures as low as -10 to -5 degrees Fahrenheit. Plants for 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.

Latest MI growing zone map

St. Louis's Growing Zone Details

USDA Growing Zone: 6a

Zip Codes: 48880

Longitude: -84.6118

Latitude: 43.4082

Lowest Avg Temperatures (F): -10 to -5

Cluck Around Sign

Whimsical sign for your chicken coop area.

Brass Watering Can

Elegant brass watering can with classic design and durability.

Metal Seed Storage Box

Organized storage solution for your seed collection.

Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Map of the St. Louis Area

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Sturdy basket for collecting and carrying your garden harvest.

Raised Garden Planter

Elevated planter for easy access and better drainage.

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Metal Seed Storage Box

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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.

Shiitake Mushroom Kit

Grow your own delicious shiitake mushrooms at home.

Metal Arbor Trellis

Decorative arbor trellis for climbing plants and garden entrance.

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Small Greenhouse Kit

Compact greenhouse perfect for small spaces.

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