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Extremely Cold Hardy Perennials Achillea Adenophora Aegopodium Ajuga Alcea Alchemilla Amsonia Anchusa Anenome sylvestris Anthemis Aquilegia Arabis Armeria Artemisia Aruncus Asclepias Aster Aurinia Baptisia australis Bergenia Brunnera Campanula Cerastium Convallaria Delphinium Dicentra Echinops Eupatorium Athyrium Matteuccia Gaillardia Chasmanthium latifolium Helictotrichon Phalaris Schizachyrium Sporobolus Gypsophila Heliopsis Hemerocallis Hosta Houttuynia Iberis Tall Bearded Iris Siberian Iris Lamium Lathyrus Liatris Lobelia cardinalis Lychnis Myosotis Nepeta Oenothera missouriensis Garden Peony Papaver Penstemon Phlox subulata Platycodon Polemonium Polygonatum Pulmonaria Salvia Saponaria Sedum Sempervivum Tanacetum alictrum ymus Tradescantia Trollius www.PerennialResource.com Brunnera Alcea Hosta Delphinium Garden Peony Where perennial lovers go for good dirt. Hardy to Zone 3 (-40°F) or colder Papaver

Extreme cold-hardiness

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Extremely Cold Hardy Perennials

Achillea AdenophoraAegopodiumAjugaAlceaAlchemillaAmsoniaAnchusaAnenome sylvestrisAnthemisAquilegiaArabisArmeriaArtemisiaAruncusAsclepiasAsterAuriniaBaptisia australisBergeniaBrunneraCampanulaCerastiumConvallariaDelphiniumDicentraEchinopsEupatoriumAthyriumMatteuccia

GaillardiaChasmanthium latifoliumHelictotrichonPhalarisSchizachyriumSporobolusGypsophilaHeliopsisHemerocallisHostaHouttuyniaIberisTall Bearded IrisSiberian IrisLamiumLathyrusLiatrisLobelia cardinalisLychnisMyosotisNepetaOenothera missouriensisGarden PeonyPapaverPenstemonPhlox subulataPlatycodonPolemoniumPolygonatumPulmonariaSalviaSaponariaSedumSempervivumTanacetumThalictrumThymusTradescantiaTrollius

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Brunnera

Alcea

Hosta

Delphinium

Garden Peony

Where perennial lovers go for good dirt.

Hardy to Zone 3 (-40°F) or colder

Papaver