Pontic azalea
Rhododendron luteum
Zones 6-
9
6
USDA Hardiness Zone 6
-10 to 0°F • Moderate winter climates
Includes sub-zones: 6a, 6b | Ideal for: perennials, shrubs, ornamental trees | 5960 total plants
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Poppy
Meconopsis 'Lingholm'
Zones 5-
7
Poppy
Papaver bracteatum
Zones 4-
9
Poppy
Papaver alpinum
Zones 4-
6
Poppy
Papaver oreophilum
Zones 4-
9
Porcelain vine
Ampelopsis brevipedunculata var. Maximowiczii 'Elegans'
Zones 4-
8
Portland rose
Rosa 'Rose de Rescht'
Zones 4-
9
Possumhaw
Ilex decidua 'Council Fire'
Zones 5-
9
Possumhaw
Ilex decidua 'Warren's Red'
Zones 5-
9
Possumhaw
Ilex decidua
Zones 5-
9
Possumhaw viburnum
Viburnum nudum 'Bulk' BRANDYWINE
Zones 5-
9
Post oak
Quercus stellata
Zones 5-
9
Potato
Solanum tuberosum
Zones 2-
11
Prague viburnum
Viburnum 'Pragense'
Zones 5-
8
Prairie aster
Solidago ptarmicoides
Zones 3-
8
Prairie aster
Symphyotrichum turbinellum
Zones 5-
8
Prairie blazing star
Liatris pycnostachya
Zones 3-
9
Prairie blue-eyed grass
Sisyrinchium campestre
Zones 2-
8
Prairie bundleflower
Desmanthus illinoensis
Zones 5-
8
Prairie camas
Camassia angusta
Zones 5-
8
Prairie cord grass
Spartina pectinata
Zones 4-
9
Prairie dock
Silphium terebinthinaceum
Zones 4-
8
Prairie dropseed
Sporobolus heterolepis 'Tara'
Zones 3-
9
Prairie dropseed
Sporobolus heterolepis
Zones 3-
9
Prairie everlasting
Antennaria neglecta
Zones 3-
8
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Prairie junegrass
Koeleria macrantha
Zones 3-
9
Prairie mallow
Sidalcea 'Party Girl'
Zones 5-
7
Prairie milkweed
Asclepias hirtella
Zones 4-
8
Prairie milkweed
Asclepias sullivantii
Zones 3-
7
Prairie onion
Allium stellatum
Zones 3-
8
Prairie phlox
Phlox pilosa
Zones 4-
9
Prairie poppy mallow
Callirhoe alcaeoides 'Logan Calhoun'
Zones 4-
9
Prairie rose
Rosa setigera
Zones 5-
8
Prairie sedge
Carex bicknellii
Zones 3-
7
Prairie smoke
Geum triflorum
Zones 3-
7
Prairie spiderwort
Tradescantia bracteata
Zones 4-
9
Prairie wake robin
Trillium recurvatum
Zones 4-
9
Prickly comfrey
Symphytum asperum
Zones 4-
8
Prickly poppy
Argemone polyanthemos
Zones 2-
11
Prickly-pear
Opuntia compressa
Zones 4-
9
Prickly-pear
Opuntia humifusa
Zones 4-
9
Prickly-pear
Opuntia aurea 'Coombe's Winter Glow'
Zones 5-
9
Primrose
Primula × bulleesiana
Zones 4-
7
Primrose
Primula 'Alejandra'
Zones 5-
8
Primrose
Primula vulgaris
Zones 4-
8
Primrose
Primula vulgaris 'Kerbelcob' BELARINA COBALT BLUE
Zones 4-
8
Primula
Primula vialii
Zones 5-
8
Princess tree
Paulownia tomentosa
Zones 5-
8
Privet
Ligustrum × ibolium
Zones 4-
7
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Privet
Ligustrum ovalifolium
Zones 5-
8
Privet honeysuckle
Lonicera pileata 'Moss Green'
Zones 6-
8
Privet honeysuckle
Lonicera pileata 'Royal Carpet'
Zones 6-
8
Proso millet
Panicum miliaceum
Zones 2-
11
Prostrate speedwell
Veronica prostrata 'Trehane'
Zones 4-
8
Prostrate speedwell
Veronica prostrata 'Buttercup'
Zones 3-
8
Prostrate speedwell
Veronica prostrata
Zones 4-
8
Pruhonicensis hybrid primula
Primula 'Wanda'
Zones 3-
9
Psephellus
Psephellus pulcherrimus
Zones 4-
8
Pulmonaria
Pulmonaria longifolia subsp. Cevennensis
Zones 3-
8
Purple beech
Fagus sylvatica (Atropurpurea Group)
Zones 5-
7
Purple coneflower
Echinacea purpurea 'Kim's Knee High'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Magnus'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'White Lustre'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'White Swan'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Cygnet White'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Finale White'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Ruby Giant'
Zones 3-
9
Purple coneflower
Echinacea purpurea 'Kim's Mop Head'
Zones 3-
9
Purple coneflower
Echinacea purpurea 'Vintage Wine'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'The King'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Rubinstern' RUBY STAR
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Razzmatazz'
Zones 3-
9
Purple coneflower
Echinacea purpurea 'Little Giant'
Zones 3-
8
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Purple coneflower
Echinacea purpurea 'Leuchtstern' BRIGHT STAR
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Lilliput'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Primadonna Deep Rose'
Zones 3-
8
Purple coneflower
Echinacea 'Raspberry Tart'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Hope'
Zones 3-
9
Purple coneflower
Echinacea purpurea 'Fragrant Angel'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Fatal Attraction'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Pica Bella'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Coconut Lime'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Prairie Giant'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Avalanche'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Meringue'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Red Knee High'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Amado'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Norwhinat' WHITE NATALIE
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Prairie Splendor'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'PowWow White'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Merlot'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Green Eyes'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Sir Lancelot'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Doubledecker'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Pink Double Delight'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Lucky Star'
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Mistral'
Zones 3-
8
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Purple coneflower
Echinacea purpurea 'Elbrook' ELTON KNIGHT
Zones 3-
8
Purple coneflower
Echinacea purpurea 'Virgin'
Zones 3-
8
Purple coneflower
Echinacea 'Mama Mia'
Zones 3-
8
Want to see more?
View all 5960 plants for Zone 6 with advanced filtering options. Search by plant type, sun exposure, water needs, and more.
See All PlantsBest Plants for Zone 6
USDA Hardiness Zone 6 experiences winter minimum temperatures between -10 to 0°F. This collection includes 5960 plants specifically suited for Zone 6 conditions, including perennials, shrubs, ornamental trees.
Understanding Your Hardiness Zone
The USDA hardiness zone is based on average annual minimum winter temperature. While it's an excellent starting point, also consider your local microclimate, soil conditions, rainfall patterns, and summer heat when selecting plants.