In this zone, average annual minumum temperatures of -23.3C to -17.8C are to be expected. Plants hardy to this zone are able to tolerate these extremes.
USDA zone 6
Showing 181–240 of 260 results
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Pinus flexilis
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Pinus flexilis var. flexilis
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Pinus flexilis var. reflexa
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Pinus heldreichii
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Pinus koraiensis
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Pinus longaeva
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Pinus monophylla
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Pinus monticola
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Pinus mugo
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Pinus mugo ssp. mugo
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Pinus mugo ssp. rotundata
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Pinus nigra
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Pinus nigra ssp. dalmatica
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Pinus nigra ssp. laricio
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Pinus nigra ssp. nigra
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Pinus nigra ssp. pallasiana var. fastigiata
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Pinus nigra ssp. pallasiana var. pallasiana
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Pinus nigra ssp. salzmannii
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Pinus parviflora
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Pinus parviflora var. parviflora
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Pinus parviflora var. pentaphylla
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Pinus peuce
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Pinus ponderosa
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Pinus ponderosa var. ponderosa
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Pinus ponderosa var. scopulorum
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Pinus pumila
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Pinus pungens
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Pinus resinosa
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Pinus rigida
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Pinus strobus
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Pinus strobus var. strobus
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Pinus sylvestris
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Pinus sylvestris var. hamata
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Pinus sylvestris var. mongolica
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Pinus sylvestris var. sylvestris
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Pinus tabuliformis
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Pinus tabuliformis var. mukdensis
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Pinus tabuliformis var. tabuliformis
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Pinus tabuliformis var. umbraculifera
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Pinus thunbergii
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Pinus virginiana
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Pinus x schwerinii
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Platycladus orientalis
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Pseudolarix amabilis
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Sciadopitys verticillata
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Taxodium distichum
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Taxodium distichum var. distichum
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Taxus baccata
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Taxus brevifolia
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Taxus canadensis
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Taxus chinensis
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Taxus cuspidata
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Taxus cuspidata var. cuspidata
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Taxus cuspidata var. nana
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Thuja koraiensis
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Thuja occidentalis
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Thuja plicata
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Thuja standishii
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Thuja sutchuenensis
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Thujopsis dolabrata