What Plants Grow Well In 51446?
The USDA hardiness zone is 5a in the 51446. This zone is a measure of the lowest temperature that a plant can survive, and helps determine what plants would grow best in the area's climate. Below you'll find a list of the best plants for 51446's climate based on this hardiness zone.
Learn more hardiness zones on our page for Irwin's growing zone.

Hydroponic Garden Grow Kit

Wooden Chicken Coop

Self Watering Plant Pots

Metal Seed Storage Box

Worm Composting Kit
Trees for 51446
Fruits for 51446
Flowers for 51446
Vegetables for 51446

Planting Advice for 51446
Have questions about planting in 51446's climate? Check out our FAQ below for answers to common questions about growing plants in the area.
Zip code 51446 is in USDA hardiness zone 5a, which means plants there can survive temperatures as low as -20 to -15°F each year.
Best Time to Plant in Irwin
Check the growing calendar for Irwin at the Old Farmer's Almanac to see the best planting times for the region.

Fiskars Garden Harvest Basket

Hoeing Ain't Easy Garden Sign

Worm Composting Kit

Seed Starting Trays

Cluck Around Sign

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Other Towns in Iowa
We have plant recommendations for most towns in Iowa. Select a town from the list below to find the best plants for your area based on the latest climate information.
Best Plants By State
Iowa not the right state? We have plant recommendations for every state, town and zip code in the United States. Choose a state from the list below to find the best plants for your area.
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