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Interactive USDA Gardening and Plant Hardiness Zone Map for Iowa

Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of Iowa which ranges from USDA Zone 4a to USDA Zone 5a.

USDA Zone 4a

-30°F to -25°F

USDA Zone 4b

-25°F to -20°F

USDA Zone 5a

-20°F to -15°F

What are Hardiness Zones, Gardening Zones, Growing Zones and Plant Zones?

Hardiness Zones, Gardening Zones, Growing Zones and Plant Zones refer to defined geographic regions that can support specific plants, flowers and trees. The zones define a minimum range of temperatures that a plant or tree can survive safely in that zone. The most commonly used Hardiness Zones were defined by the USDA. The USDA provides a hard copy map that displays these zone throughout the US. The last update to this map covers minimum temperatures from 1961 to 1990. An updated map is currently in production, but has not been released yet. Plant Maps provides the only interactive version of the USDA hardiness zone map available on the internet.

Zone Maps for Adjacent States

Illinois Zone Map
Minnesota Zone Map
Missouri Zone Map
Nebraska Zone Map
South Dakota Zone Map
Wisconsin Zone Map

Other Interactive Gardening Maps and Data for Iowa

Interactive Map of Iowa Heat Zones
Interactive Map of Iowa Ecoregions
Interactive Maps of Native Iowa Trees and Plants
Interactive Iowa Plantmaps Hardiness Zone Map

Zoom to Major Cities in Iowa

Zoom to Cedar Rapids USDA Zone 5aCedar Rapids - USDA Zone 5a
Zoom to Davenport USDA Zone 5aDavenport - USDA Zone 5a
Zoom to Des Moines USDA Zone 5aDes Moines - USDA Zone 5a
Zoom to Ottumwa USDA Zone 5aOttumwa - USDA Zone 5a
Zoom to Sioux City USDA Zone 4bSioux City - USDA Zone 4b

Interactive Maps of Iowa Native Plants Distribution Areas

Acer negundo - boxelder Map
Acer nigrum - black maple Map
Acer saccharinum - silver maple Map
Acer saccharum - sugar maple Map
Aesculus glabra - Ohio buckeye Map
Amelanchier alnifolia - western serviceberry Map
Amelanchier arborea - downy serviceberry Map
Amelanchier interior - inland serviceberry Map
Amelanchier sanguinea - roundleaf serviceberry Map
Asimina triloba - pawpaw Map
Betula alleghaniensis - yellow birch Map
Betula nigra - river birch Map
Betula papyrifera - paper birch Map
Carpinus caroliniana - American hornbeam Map
Carya cordiformis - bitternut hickory Map
Carya glabra - pignut hickory Map
Carya illinoensis - pecan Map
Carya laciniosa - shellbark hickory Map
Carya ovata - shagbark hickory Map
Carya tomentosa - mockernut hickory Map
Celtis occidentalis - hackberry Map
Celtis tenuifolia - Georgia hackberry Map
Cephalanthus occidentalis - common buttonbush Map
Cercis canadensis - eastern redbud Map
Cornus alternifolia - alternate leaf dogwood Map
Cornus drummondii - roughleaf dogwood Map
Cornus racemosa - gray dogwood Map
Cornus rugosa - roundleaf dogwood Map
Cornus stolonifera - red osier dogwood Map
Crataegus chrysocarpa - fireberry hawthorn Map
Crataegus succulenta - fleshy hawthorn Map
Diospyros virginiana - common persimmon Map
Euonymus atropurpureus - eastern wahoo Map
Fraxinus americana - white ash Map
Fraxinus nigra - black ash Map
Fraxinus pennsylvanica - green ash Map
Fraxinus quadrangulata - blue ash Map
Gleditsia triacanthos - honeylocust Map
Gymnocladus dioicus - Kentucky coffeetree Map
Hamamelis virginiana - witch hazel Map
Ilex decidua - possumhaw Map
Juglans cinerea - butternut Map
Juglans nigra - black walnut Map
Juniperus virginiana - eastern redcedar Map
Malus ioensis - prairie crab apple Map
Morus rubra - red mulberry Map
Ostrya virginiana - eastern hophornbeam Map
Pinus strobus - eastern white pine Map
Platanus occidentalis - American sycamore Map
Populus balsamifera - balsam poplar Map
Populus deltoides - eastern cottonwood Map
View More Interactive Maps of Iowa Plants and Trees...