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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
Delaware Zone MapMaryland Zone Map
New Jersey Zone Map
New York Zone Map
Ohio Zone Map
West Virginia Zone Map
Other Interactive Gardening Maps and Data for Pennsylvania
Interactive Pennsylvania Drought Monitor MapPennsylvania First Frost Date Map
Pennsylvania Last Frost Date Map
Interactive Map of Pennsylvania Drought Conditions
Interactive Map of Pennsylvania Heat Zones
Interactive Map of Pennsylvania Ecoregions
Interactive Maps of Native Pennsylvania Trees and Plants
Interactive Pennsylvania Plantmaps Hardiness Zone Map
Zoom to Major Cities in Pennsylvania
Allentown - USDA Zone 6bAltoona - USDA Zone 6aErie - USDA Zone 6aLancaster - USDA Zone 6aPhiladelphia - USDA Zone 7aPittsburgh - USDA Zone 6aReading - USDA Zone 6bScranton - USDA Zone 6aWilkes Barre - USDA Zone 6aInteractive Maps of Pennsylvania Native Plants Distribution Areas
Acer negundo - boxelder MapAcer rubrum - red maple MapAcer saccharinum - silver maple MapAcer saccharum - sugar maple MapAlnus serrulata - hazel alder MapAmelanchier arborea - downy serviceberry MapAsimina triloba - pawpaw MapBetula lenta - sweet birch MapBetula nigra - river birch MapBetula populifolia - gray birch MapCarpinus caroliniana - American hornbeam MapCarya cordiformis - bitternut hickory MapCarya glabra - pignut hickory MapCarya laciniosa - shellbark hickory MapCarya ovata - shagbark hickory MapCarya tomentosa - mockernut hickory MapCastanea dentata - American chestnut MapCeltis occidentalis - hackberry MapCephalanthus occidentalis - common buttonbush MapCercis canadensis - eastern redbud MapChionanthus virginicus - fringetree MapCornus alternifolia - alternate leaf dogwood MapCornus florida - flowering dogwood MapCornus racemosa - gray dogwood MapDiospyros virginiana - common persimmon MapEuonymus atropurpureus - eastern wahoo MapFagus grandifolia - American beech MapFraxinus americana - white ash MapFraxinus nigra - black ash MapFraxinus pennsylvanica - green ash MapHamamelis virginiana - witch hazel MapIlex laevigata - smooth winterberry MapIlex opaca - American holly MapIlex verticillata - common winterberry MapJuglans cinerea - butternut MapJuglans nigra - black walnut MapJuniperus virginiana - eastern redcedar MapKalmia latifolia - mountain laurel MapLiquidambar styraciflua - sweetgum MapLiriodendron tulipifera - yellow poplar MapMagnolia virginiana - sweetbay MapMalus coronaria - sweet crab apple MapMorus rubra - red mulberry MapMyrica pensylvanica - northern bayberry MapNyssa sylvatica - black tupelo MapOstrya virginiana - eastern hophornbeam MapPinus echinata - shortleaf pine MapPinus rigida - pitch pine MapPinus strobus - eastern white pine MapPinus virginiana - Virginia pine MapPlatanus occidentalis - American sycamore MapView More Interactive Maps of Pennsylvania Plants and Trees...