Interactive USDA Gardening and Plant Hardiness Zone Map for Connecticut

Based on the 1990 USDA Hardiness Zone Map, this interactive version covers the state of Connecticut which ranges from USDA Zone 5b to USDA Zone 6b.

USDA Zone 5b

-15°F to -10°F

USDA Zone 6a

-10°F to -5°F

USDA Zone 6b

-5°F to 0°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. In 2012 the USDA released an updated Connecticut hardiness zone map covering the period of 1981-2010

Zone Maps for Adjacent States

Massachusetts Zone Map
New York Zone Map
Rhode Island Zone Map

Other Interactive Gardening Maps and Data for Connecticut

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

Zoom to Major Cities in Connecticut

Zoom to Bridgeport USDA Zone 6bBridgeport - USDA Zone 6b
Zoom to Danbury USDA Zone 6aDanbury - USDA Zone 6a
Zoom to Danielson USDA Zone 6aDanielson - USDA Zone 6a
Zoom to East Haven USDA Zone 6bEast Haven - USDA Zone 6b
Zoom to Fairfield USDA Zone 6bFairfield - USDA Zone 6b
Zoom to Glastonbury USDA Zone 6aGlastonbury - USDA Zone 6a
Zoom to Greenwich USDA Zone 6bGreenwich - USDA Zone 6b
Zoom to Guilford Center USDA Zone 6bGuilford Center - USDA Zone 6b
Zoom to Hartford USDA Zone 6aHartford - USDA Zone 6a
Zoom to Jewett City USDA Zone 6aJewett City - USDA Zone 6a
Zoom to Meriden USDA Zone 6aMeriden - USDA Zone 6a
Zoom to New Haven USDA Zone 6bNew Haven - USDA Zone 6b
Zoom to New London USDA Zone 6aNew London - USDA Zone 6a
Zoom to New Milford USDA Zone 5bNew Milford - USDA Zone 5b
Zoom to Niantic USDA Zone 6aNiantic - USDA Zone 6a
Zoom to Norwich USDA Zone 6aNorwich - USDA Zone 6a
Zoom to Old Lyme USDA Zone 6aOld Lyme - USDA Zone 6a
Zoom to Pawcatuck USDA Zone 6aPawcatuck - USDA Zone 6a
Zoom to Sharon USDA Zone 5bSharon - USDA Zone 5b
Zoom to Stamford USDA Zone 6bStamford - USDA Zone 6b
Zoom to Thompson USDA Zone 5bThompson - USDA Zone 5b
Zoom to Tolland USDA Zone 5bTolland - USDA Zone 5b
Zoom to Torrington USDA Zone 5bTorrington - USDA Zone 5b
Zoom to Waterbury USDA Zone 6aWaterbury - USDA Zone 6a
Zoom to West Haven USDA Zone 6bWest Haven - USDA Zone 6b
Zoom to Windham USDA Zone 6aWindham - USDA Zone 6a
Zoom to Windsor Locks USDA Zone 6aWindsor Locks - USDA Zone 6a
Zoom to Wolcott USDA Zone 6aWolcott - USDA Zone 6a

Interactive Maps of Connecticut Native Plants Distribution Areas

Acer nigrum - black maple Map
Acer pensylvanicum - striped maple Map
Acer rubrum - red maple Map
Acer saccharinum - silver maple Map
Acer saccharum - sugar maple Map
Acer spicatum - mountain maple Map
Alnus rugosa - speckled alder Map
Alnus serrulata - hazel alder Map
Amelanchier arborea - downy serviceberry Map
Baccharis halimifolia - eastern baccharis Map
Betula alleghaniensis - yellow birch Map
Betula lenta - sweet birch Map
Betula nigra - river birch Map
Betula papyrifera - paper birch Map
Betula populifolia - gray birch Map
Carpinus caroliniana - American hornbeam Map
Carya cordiformis - bitternut hickory Map
Carya glabra - pignut hickory Map
Carya ovata - shagbark hickory Map
Carya tomentosa - mockernut hickory Map
Castanea dentata - American chestnut Map
Celtis occidentalis - hackberry Map
Cephalanthus occidentalis - common buttonbush Map
Chamaecyparis thyoides - Atlantic white cedar Map
Cornus alternifolia - alternate leaf dogwood Map
Cornus florida - flowering dogwood Map
Cornus racemosa - gray dogwood Map
Cornus rugosa - roundleaf dogwood Map
Cornus stolonifera - red osier dogwood Map
Corylus cornuta - beaked hazel Map
Diospyros virginiana - common persimmon Map
Fagus grandifolia - American beech Map
Fraxinus americana - white ash Map
Fraxinus nigra - black ash Map
Fraxinus pennsylvanica - green ash Map
Hamamelis virginiana - witch hazel Map
Ilex laevigata - smooth winterberry Map
Ilex opaca - American holly Map
Ilex verticillata - common winterberry Map
Juglans cinerea - butternut Map
Juglans nigra - black walnut Map
Juniperus virginiana - eastern redcedar Map
Kalmia latifolia - mountain laurel Map
Larix laricina - tamarack Map
Liquidambar styraciflua - sweetgum Map
Liriodendron tulipifera - yellow poplar Map
Morus rubra - red mulberry Map
Myrica pensylvanica - northern bayberry Map
Nyssa sylvatica - black tupelo Map
Ostrya virginiana - eastern hophornbeam Map
Pinus rigida - pitch pine Map
View More Interactive Maps of Connecticut Plants and Trees...