Arid Zone Trees

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Tree Hardiness

The following information supersedes hardiness temperatures shown on AZTimes articles prior to this update of October 27, 2009.

Tree hardiness shown is the best information that we currently have, however genetic variation, location, soil moisture, tree maturity and duration of cold could cause damage at or even above the temperatures shown below. Temperatures in yellow reflect lows experienced at Arid Zone Trees.

Printable copy click  Tree Hardiness pdf

Botanical Name Common Name Fahrenheit Celsius
Acacia abyssinica Ethiopian Acacia 15 -9.4
Acacia aneura Mulga 15 -9.4
Acacia aroma Tusca 20 -6.7
Acacia berlandieri Guajillo 10 -12.2
Acacia brachystachya Umbrella or Turpentine Mulga 15 -9.4
Acacia brachybotrya Gray Mulga 18 -7.7
Acacia caven Espino Caven 15 -9.4
Acacia constricta Whitethorn Acacia 0 -17.7
Acacia coriacea Desert Oak 20 -6.7
Acacia cowleana Halls Creek Wattle 20 -6.7
Acacia craspedocarpa Leather Leaf Acacia 18 -7.7
Acacia cyclops Western Coastal Wattle 20 -6.7
Acacia dictyophleba   20 -6.7
Acacia eburnea Arabian Acacia 7 -13.9
Acacia erioloba Giraffe Thorn, Camel Thorn 18 -7.7
Acacia estrophiolata Ironwood 20 -6.7
Acacia gerrardii Grey-haired Acacia 18 -7.7
Acacia greggii Catclaw Acacia 0 -17.8
Acacia jennerae Coonavittra Wattle 15 -9.4
Acacia karroo Karroo Thorn, Sweet Thorn 18 -7.7
Acacia ligulata Small Cooba 15 -9.4
Acacia lysiphloia Dune Wattle, Turpentine Wattle 20 -6.7
Acacia microbotrya Gum Wattle 20 -6.7
Acacia microaneura Narrow Leaf Mulga 15 -9.4
Acacia neovernicosa Chihuahuan White Thorn 10 -12.2
Acacia nebrownii Water Acacia 18 -7.7
Acacia notabilis Notable Wattle 18 -7.7
Acacia occidentalis Sonoran Tree Catclaw 15 -9.4
Acacia papyrocarpa Western Myall 18 -7.7
Acacia pendula Weeping Myall 15 -9.4
Acacia pruinocarpa Black Gidgee 18 -7.7
Acacia retinoides Swamp Wattle, Silver Wattle 25 -3.9
Acacia rigidula Blackbrush Acacia 15 -9.4
Acacia rivalis Silver Wattle 15 -9.4
Acacia roemeriana Roemer Acacia 20 -6.7
Acacia schaffneri Schaffner or Twisted Acacia 15 -9.4
Acacia smallii (A. minuta) Sweet Acacia 20 -6.7
Acacia stenophylla Shoestring Acacia 18 -7.7
Acacia tetragonophylla Dead Finish 20 -6.7
Acacia tortilis Umbrella Thorn 18 -7.7
Acacia trachycarpa Sweet-Scented Minnieritchie 25 -3.9
Acacia trineura Three-nerved wattle 15 -9.4
Acacia victoriae Bramble Wattle 18 -7.7
Acacia willardiana Palo Blanco 25 -3.9
Acacia xanthophloea Fever Tree 25 -3.9
Bauhinia lunarioides Anacacho Orchid Tree 18 -7.7
Caesalpinia cacalaco Cascalote 25 -3.9
Caesalpinia gilliesii Desert Bird of Paradise 10 -12.2
Caesalpinia mexicana Mexican Bird of Paradise 20 -6.7
Caesalpinia palmeri Bird of Paradise, Piojo 20 -6.7
Caesalpinia pulcherrima Red Bird of Paradise 25 -3.9
Celtis pallida Desert Hackberry 15 -9.4
Celtis reticulata Canyon Hackberry -20 -28.9
Cercidium floridum Blue Palo Verde 10 -12.2
Cercidium hybrid 'AZT' 'AZT' Thornless Palo Verde 18 -7.7
Cercidium hybrid (Desert Museum) Desert Museum 15 -9.4
Cercidium microphyllum Foothill Palo Verde 15 -9.4
Cercidium praecox Sonoran Palo Verde, Palo Brea 20 -6.7
Cercidium praecox 'AZT' 'AZT' Sonoran Palo Verde 18 -7.7
Chilopsis linearis Desert Willow 10 -12.2
Chilopsis linearis 'AZT Bi-Color' Desert Willow 'AZT Bi-Color' 10 -12.2
Chilopsis linearis 'AZT Desert Amethyst' Desert Willow 'AZT Desert Amethyst' 10 -12.2
Chilopsis linearis 'AZT Dora's Desert Rose' Desert Willow 'AZT Dora's Desert Rose' 10 -12.2
Condalia hookeri Brasil 15 -9.4
Cupressus arizonica Arizona Cyprus 0 -17.8
Dodonaea angustifolia Hopbush 18 -7.7
Erythrina bidwillii Bidwell's Coral Bean 25 -3.9
Eysenhardtia orthocarpa Kidneywood 18 -7.7
Eysenhardtia texana Texas Kidneywood 18 -7.7
Faidherbia albida Apple-ring acacia, Ana Tree 18 -7.7
Geoffroea decorticans Chilean Palo Verde 15 -9.4
Guaiacum coulteri Guayacan 28 -2.2
Haematoxylum brasiletto Brazilwood 25 -3.9
Lysiloma microphyllum Mauto 25 -3.9
Olneya tesota Ironwood 20 -6.7
Olneya tesota 'AZT' 'AZT' Ironwood 20 -6.7
Pithecellobium flexicaule Texas Ebony 20 -6.7
Pithecellobium mexicanum Mexican Ebony 15 -9.4
Pithecellobium pallens Tenaza 15 -9.4
Prosopis alba Argentine Mesquite 20 -6.7
Prosopis chilensis Chilean Mesquite 15 -9.4
Prosopis hybrid 'AZT' 'AZT' Thornless Hybrid Mesquite 15 -9.4
Prosopis flexuosa Algarrobo Negro 10 -12.2
Prosopis glandulosa Honey Mesquite 0 -17.8
Prosopis glandulosa 'AZT' 'AZT' Thornless Honey Mesquite 0 -17.8
Prosopis juliflora Native Mesquite 0 -17.8
Prosopis pubescens Screwbean Mesquite 0 -17.8
Prosopis velutina Velvet Mesquite 0 -17.8
Psorothamnus spinosus Desert Smoke Tree 20 -6.7
Rhus choriophylla Evergreen Sumac 10 -12.2
Rhus kearneyi Kearny's Sumac 20 -6.7
Sambucus mexicana Mexican Elderberry 0 -17.8
Schotia afra var angustifolia Karroo Boer-bean 18 -7.7
Sophora secundiflora Texas Mountain Laurel 0 -17.8
S. secundiflora 'Silver Peso' Texas Mountain Laurel 0 -17.8
Tecoma garrocha Hieron 20 -6.7
Vauquelinia californica Arizona Rosewood 10 -12.2