What Growing Zone Is Tiffin?
Our records indicate the United States Department of Agriculture has given Tiffin 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 Tiffin's climate based on the average extreme annual temperature.Our data is based on the latest 2023 USDA maps, which used Tiffin's weather data from 1991 - 2020 in their analysis.
Latest IA growing zone mapIf you are looking for plants suitable for growing in the Tiffin area, head on over to our page on plants that grow well in Tiffin, IA.
Wooden Chicken Coop
Spacious and secure home for your backyard chickens.
Metal Seed Storage Box
Organized storage solution for your seed collection.
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.
Naughty Garden Gnome Statue
Know someone with a naughty sense of humor? This gnome statue is sure to get some laughs.
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 Tiffin is in growing zone 5b this means that plants there can survive temperatures as low as -15 to -10 degrees Fahrenheit. Plants for Tiffin'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 Tiffin area has been affected, refer to this map of half zone changes from the 2012 version of the USDA zones to the 2023 version.
The 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 Tiffin, IA.
The USDA hardiness zone is 5b for Tiffin. This is sometimes also referred to as the growing or planting zone. These terms are used interchangeably.
Tiffin's Growing Zone Details
USDA Growing Zone: 5b
Zip Codes:
Longitude: -91.6583
Latitude: 41.7064
Lowest Avg Temperatures (F): -15 to -10
Heavy Duty Garden Utility Wagon
Let gardeners haul it all with this rugged utility wagon from Gorilla Carts.
Cute Foldable Straw Bow Hat
A foldable hat for ladies that does not sacrifice style, perfect for the fashionable gardener in your life.
Small Greenhouse Kit
Compact greenhouse perfect for small spaces.
Unisex Summer Straw Hat
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Deluxe Plastic Watering Can
High-capacity watering can with comfortable grip and precise spout.
Map of the Tiffin Area
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Self Watering Plant Pots
Innovative pots that maintain optimal moisture levels.
Naughty Garden Gnome Statue
Know someone with a naughty sense of humor? This gnome statue is sure to get some laughs.
Raised Garden Planter
Elevated planter for easy access and better drainage.
Metal Arbor Trellis
Decorative arbor trellis for climbing plants and garden entrance.
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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Heron with Prey Bronze Statue
Make a memorable impression with this striking bronze heron statue.
Hydroponic Garden Grow Kit
Grow fresh herbs and vegetables year-round with this indoor hydroponic garden system.
Reusable Grow Bags
Breathable fabric grow bags that promote healthy root growth for your vegetables and fruits.
Stainless Steel Garden Tool Set
Complete garden tool set with heavy-duty stainless steel tools for all your gardening needs.
Wooden Chicken Coop
Spacious and secure home for your backyard chickens.
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