Interactive USDA Gardening and Plant Hardiness Zone Map for Idaho

Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of Idaho which ranges from USDA Zone 2b to USDA Zone 7a.

USDA Zone 2b

-45°F to -40°F

USDA Zone 3a

-40°F to -35°F

USDA Zone 3b

-35°F to -30°F

USDA Zone 4a

-30°F to -25°F

USDA Zone 4b

-25°F to -20°F

USDA Zone 5a

-20°F to -15°F

USDA Zone 5b

-15°F to -10°F

USDA Zone 6a

-10°F to -5°F

USDA Zone 6b

-5°F to 0°F

USDA Zone 7a

0°F to 5°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.

Zone Maps for Adjacent States

Montana Zone Map
Nevada Zone Map
Oregon Zone Map
Utah Zone Map
Washington Zone Map
Wyoming Zone Map

Other Interactive Gardening Maps and Data for Idaho

Idaho 2012 USDA Hardiness Zone Map
Map of Idaho Record High/Low Temperatures
Idaho First Frost Date Map
Idaho Last Frost Date Map
Interactive Idaho Drought Monitor Map
Interactive Map of Idaho Drought Conditions
Interactive Map of Idaho Heat Zones
Interactive Map of Idaho Ecoregions
Interactive Maps of Native Idaho Trees and Plants

Zoom to Major Cities in Idaho

Zoom to American Falls USDA Zone 5bAmerican Falls - USDA Zone 5b
Zoom to Blackfoot USDA Zone 5bBlackfoot - USDA Zone 5b
Zoom to Boise USDA Zone 6bBoise - USDA Zone 6b
Zoom to Buhl USDA Zone 6aBuhl - USDA Zone 6a
Zoom to Emmett USDA Zone 6aEmmett - USDA Zone 6a
Zoom to Grangeville USDA Zone 6bGrangeville - USDA Zone 6b
Zoom to Hailey USDA Zone 4bHailey - USDA Zone 4b
Zoom to Hayden USDA Zone 6bHayden - USDA Zone 6b
Zoom to Heyburn USDA Zone 5bHeyburn - USDA Zone 5b
Zoom to Idaho Falls USDA Zone 4aIdaho Falls - USDA Zone 4a
Zoom to Jerome USDA Zone 6aJerome - USDA Zone 6a
Zoom to Kellogg USDA Zone 5bKellogg - USDA Zone 5b
Zoom to Ketchum USDA Zone 4bKetchum - USDA Zone 4b
Zoom to Lewiston USDA Zone 6bLewiston - USDA Zone 6b
Zoom to Montpelier USDA Zone 4aMontpelier - USDA Zone 4a
Zoom to Moscow USDA Zone 6aMoscow - USDA Zone 6a
Zoom to Mountain Home USDA Zone 6aMountain Home - USDA Zone 6a
Zoom to Nampa USDA Zone 6aNampa - USDA Zone 6a
Zoom to Orofino USDA Zone 6aOrofino - USDA Zone 6a
Zoom to Payette USDA Zone 6aPayette - USDA Zone 6a
Zoom to Pocatello USDA Zone 5bPocatello - USDA Zone 5b
Zoom to Preston USDA Zone 4bPreston - USDA Zone 4b
Zoom to Rexburg USDA Zone 4aRexburg - USDA Zone 4a
Zoom to Saint Anthony USDA Zone 4aSaint Anthony - USDA Zone 4a
Zoom to Saint Maries USDA Zone 5bSaint Maries - USDA Zone 5b
Zoom to Salmon USDA Zone 4bSalmon - USDA Zone 4b
Zoom to Sandpoint USDA Zone 6aSandpoint - USDA Zone 6a
Zoom to Twin Falls USDA Zone 6aTwin Falls - USDA Zone 6a
Zoom to Weiser USDA Zone 5bWeiser - USDA Zone 5b

Interactive Maps of Idaho Native Plants Distribution Areas

Abies grandis - grand fir Map
Abies lasiocarpa - subalpine fir Map
Acer glabrum - Rocky Mountain maple Map
Alnus rhombifolia - white alder Map
Alnus sinuata - Sitka alder Map
Alnus tenuifolia - thinleaf alder Map
Amelanchier alnifolia - western serviceberry Map
Artemisia tridentata - big sagebrush Map
Betula occidentalis - water birch Map
Betula papyrifera - paper birch Map
Celtis reticulata - netleaf hackberry Map
Cercocarpus ledifolius - curlleaf cercocarpus Map
Cornus stolonifera - red osier dogwood Map
Crataegus columbiana - Columbia hawthorn Map
Crataegus douglasii - black hawthorn Map
Larix occidentalis - western larch Map
Picea engelmannii - Engelmann spruce Map
Pinus albicaulis - whitebark pine Map
Pinus contorta - lodgepole pine Map
Pinus monticola - western white pine Map
Pinus ponderosa - ponderosa pine Map
Populus tremuloides - quaking aspen Map
Populus trichocarpa - black cottonwood Map
Prunus emarginata - bitter cherry Map
Prunus virginiana - common chokecherry Map
Pseudotsuga menziesii - Douglas fir Map
Rhamnus purshiana - cascara buckthorn Map
Rhus glabra - smooth sumac Map
Salix amygdaloides - peachleaf willow Map
Salix bebbiana - Bebb willow Map
Salix exigua - coyote willow Map
Salix geyeriana - Geyer willow Map
Salix lasiandra - Pacific willow Map
Salix mackenzieana - Mackenzie willow Map
Salix scouleriana - Scouler willow Map
Sambucus glauca - blueberry elder Map
Sorbus scopulina - Greene mountain ash Map
Taxus brevifolia - Pacific yew Map
Thuja plicata - western redcedar Map