What Growing Zone Is Irena?
Our records indicate the United States Department of Agriculture has given Irena a growing zone designation of 5b. Sometimes also called the planting or hardiness zone, this zone number gives you an idea of what plants can and cannot grow in Irena's climate based on the average extreme annual temperature. .Our data is based on the latest 2023 USDA maps, which used Irena's weather data from 1991 - 2020 in their analysis.
If you are looking for plants suitable for growing in the Irena area, head on over to our page on plants that grow well in Irena, MO.
Wooden Chicken Coop
Spacious and secure home for your backyard chickens.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Large Greenhouse Kit
Spacious greenhouse for extending your growing season.
Self Watering Plant Pots
Innovative pots that maintain optimal moisture levels.
Raised Garden Bed Kit
Easy-to-assemble raised garden bed for better soil control and drainage.
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 Irena is in growing zone 5b this means that plants there can survive temperatures as low as -15 to -10 degrees Fahrenheit. Plants for Irena'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 Irena 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!
Irena's Growing Zone Details
USDA Growing Zone: 5b
Zip Codes: 64456
Longitude: -94.3899
Latitude: 40.5403
Lowest Avg Temperatures (F): -15 to -10
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
Shiitake Mushroom Kit
Grow your own delicious shiitake mushrooms at home.
Reusable Grow Bags
Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Self Watering Plant Pots
Innovative pots that maintain optimal moisture levels.
Raised Garden Bed Kit
Easy-to-assemble raised garden bed for better soil control and drainage.
Map of the Irena Area
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Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
Reusable Grow Bags
Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Hoeing Ain't Easy Garden Sign
Fun and decorative garden sign to add personality to your space.
Brass Decorative Faucet Handle
Elegant brass handle to enhance your garden faucet.
Seed Starting Trays
Perfect for starting seeds indoors before transplanting to your garden.
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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Raised Garden Bed Kit
Easy-to-assemble raised garden bed for better soil control and drainage.
Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Hydroponic Garden Grow Kit
Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
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.
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