Explore / Hardiness & climate / Cold-hardy (zone 4a or colder)
Hardiness & climate
Cold-hardy (zone 4a or colder)
Taxa whose minimum survivable temperature is −30 °F or lower — suitable for hardiness zone 4a and colder. The Upper Plains, northern New England, the Mountain West interior.
- Matching taxa
- 856
- Page
- 3 / 18
- Filter
- max_temperature_f=-30
Showing 101–150 of 856.
-
Asclepias speciosa Torr. ASSPshowy milkweed · Asclepiadaceae -
Asclepias tuberosa L. ASTUbutterfly milkweed · Asclepiadaceae -
Astragalus agrestis Douglas ex G. Don ASAG2purple milkvetch · Fabaceae -
Astragalus canadensis L. ASCA11Canadian milkvetch · Fabaceae -
Astragalus cicer L. ASCI4chickpea milkvetch · Fabaceae -
Astragalus purshii Douglas ex Hook. ASPU9woollypod milkvetch · Fabaceae -
Athyrium filix-femina (L.) Roth ATFIcommon ladyfern · Dryopteridaceae -
Atriplex canescens (Pursh) Nutt. ATCA2fourwing saltbush · Chenopodiaceae -
Atriplex confertifolia (Torr. & Frém.) S. Watson ATCOshadscale saltbush · Chenopodiaceae - Atriplex falcata (M.E. Jones) Standl. ATFAsickle saltbush · Chenopodiaceae
-
Atriplex gardneri (Moq.) D. Dietr. ATGAGardner's saltbush · Chenopodiaceae -
Bacopa rotundifolia (Michx.) Wettst. BAROdisk waterhyssop · Scrophulariaceae -
Balsamorhiza sagittata (Pursh) Nutt. BASA3arrowleaf balsamroot · Asteraceae -
Bassia americana (S. Watson) A.J. Scott BAAM4green molly · Chenopodiaceae -
Bassia scoparia (L.) A.J. Scott BASC5burningbush · Chenopodiaceae -
Berula erecta (Huds.) Coville BEERcutleaf waterparsnip · Apiaceae -
Betula alleghaniensis Britton BEAL2yellow birch · Betulaceae -
Betula nana L. BENAdwarf birch · Betulaceae -
Betula nigra L. BENIriver birch · Betulaceae -
Betula occidentalis Hook. BEOC2water birch · Betulaceae -
Betula papyrifera Marshall BEPApaper birch · Betulaceae -
Betula pendula Roth BEPE3European white birch · Betulaceae -
Betula populifolia Marshall BEPOgray birch · Betulaceae -
Betula pumila L. BEPU4bog birch · Betulaceae -
Boehmeria cylindrica (L.) Sw. BOCYsmallspike false nettle · Urticaceae -
Bolboschoenus fluviatilis (Torr.) Soják BOFL3river bulrush · Cyperaceae -
Boltonia asteroides (L.) L'Hér. BOASwhite doll's daisy · Asteraceae -
Botrychium lanceolatum (S.G. Gmel.) Angstr. BOLAlanceleaf grapefern · Ophioglossaceae -
Botrychium lunaria (L.) Sw. BOLUcommon moonwort · Ophioglossaceae -
Botrychium virginianum (L.) Sw. BOVIrattlesnake fern · Ophioglossaceae -
Bouteloua curtipendula (Michx.) Torr. BOCUsideoats grama · Poaceae -
Bouteloua dactyloides (Nutt.) J.T. Columbus BODA2buffalograss · Poaceae -
Bouteloua gracilis (Willd. ex Kunth) Lag. ex Griffiths BOGR2blue grama · Poaceae -
Bouteloua hirsuta Lag. BOHI2hairy grama · Poaceae -
Bromus anomalus Rupr. ex Fourn. BRANnodding brome · Poaceae -
Bromus inermis Leyss. BRIN2smooth brome · Poaceae -
Bromus kalmii A. Gray BRKA2arctic brome · Poaceae -
Calamagrostis canadensis (Michx.) P. Beauv. CACA4bluejoint · Poaceae -
Calamagrostis stricta (Timm) Koeler ssp. inexpansa (A. Gray) C.W. Greene CASTI3northern reedgrass · Poaceae - Calamagrostis stricta (Timm) Koeler ssp. stricta CASTS5slimstem reedgrass · Poaceae
-
Calamovilfa longifolia (Hook.) Scribn. CALOprairie sandreed · Poaceae -
Callirhoe involucrata (Torr. & A. Gray) A. Gray CAIN2purple poppymallow · Malvaceae -
Callitriche hermaphroditica L. CAHE2northern water-starwort · Callitrichaceae -
Callitriche heterophylla Pursh CAHE3twoheaded water-starwort · Callitrichaceae -
Callitriche palustris L. CAPA52vernal water-starwort · Callitrichaceae -
Caltha leptosepala DC. CALE4white marsh marigold · Ranunculaceae -
Caltha palustris L. CAPA5yellow marsh marigold · Ranunculaceae -
Campanula aparinoides Pursh CAAP2marsh bellflower · Campanulaceae -
Canadanthus modestus (Lindl.) G.L. Nesom CAMO32giant mountain aster · Asteraceae -
Caragana arborescens Lam. CAAR18Siberian peashrub · Fabaceae