CYCAD SPECIES ORIGIN ALTITUDE FREEZE MIN TEMP. DAMAGE NO-DAMAGE
------------- ------ -------- ------ --------- ------ ---------
Bowenia serrulata Queensland little
Ceratozamia hildae Mexico little
Ceratozamia kuesteriana little
Ceratozamia mexicana Mexico little/medium 27'F
Chigua basaltica Colombia little
Chigua cairnsiana Colombia little
Chigua couttsiana Colombia little
Chigua furfuracea Colombia little
Chigua guizhouensis Colombia little
Chigua media Colombia little
Cycas circinalis 23'F
Cycas megacarpa little
Cycas revoluta Nansei Island, SWJapan hard 15'F 18'F 21'F
Cycas panzihuaensis Panziha, China hard 15'F
Cycas rumphii 25'F 29'F
Cycas taiwaniana Taiwan little 25'F
Cycas media Mackay toCape York,E.Queensland little
Ceratozamia mexicana Mexico 25'F 29'F
Dioon edule Mexico medium 19'F 18'F
Dioon mejiae Honduras 23'F
Dioon spinulosum Mexico medium 25'F 27'F 29'F
Encephalartos aemulans Africa little
Encephalartos altensteinii E.Cape to Mozambique little 26'F
Encephalartos caffer Africa little
Encephalartos cycadifolius Winterberg(E.Cape) 5,900ft medium 21'F
Encephalartos ferox Costal Natal medium 23'F 27'F
Encephalartos friderici-guilielmi E.Cape (rocky slopes) little
Encephalartos ghellinckii Drakensberg Mountains 7,800ft little/medium 21'F
Encephalartos horridus (blue) Port Elizabeth(E.Cape) little(dry)
Encephalartos humilis Africa little
Encephalartos laevifolius Africa little
Encephalartos lanatus Africa medium 25'F
Encephalartos lehmannii Africa medium 20'F
Encephalartos longifolius MntnSlopes-Prt.Elizabeth little
Encephalartos manikensis Africa little
Encephalartos natalensis Inland Natal little 23'F
Encephalartos middelburgensis Africa little
Encephalartos paucidentatus Africa little
Encephalartos transvenosus Africa little
Lepidozamia hopei NE Queensland little 23'F 30'F
Lepidozamia peroffskyana NECoast(NewSWales)to Brisbane medium 21'F
Macrozamia communis Sydney to North(NewSWales) medium 25'F
Macrozamia diplomera Inland NewSWales little/medium 24'F
Macrozamia dieri Australia little
Macrozamia fawcettii N.Coast NewSWales little
Macrozamia fearnsidei Injune(Inland S.Queensl. little
Macrozamia flexuosa little
Macrozamia heteromera(blue-green) NW.NewSWales little
Macrozamia johnsonii little
Macrozamia lomandroides Bundaberg S.Queensland little
Macrozamia lucida N.NewSWales +SCoastQueensl.
Macrozamia macdonnellii(blue) Alice Springs little(moist)
Macrozamia miquellii Queensl.to Rockhampton little(moist)
Macrozamia moorei NE NewSWales+CentralQueensl. medium 20'F 21'F
Macrozamia mountperriensis Mount Perry(Queensl.) little
Macrozamia paul-guilielmi/flexuosaCoast Sydney, NewSWales
Macrozamia paul-guilielmi/p.g. Coast S.Queensl.
Macrozamia platyrachis most tender in genus
Macrozamia plurinervia Inland N.NewSWales
Macrozamia riedlei(S:green,N:blue)SWCoast(W.Australia) medium 18'F
Macrozamia secunda Inland NewSWales little(dry) 27'F
Macrozamia spiralis Central NewSWales medium
Macrozamia stenomera(blue-green) N.NewSWales 3,300ft medium(hardiest in genus)
Stangeria eriopus Australia 23'F
Zamia integrifolia SE USA to West Indies little 18'F 21'F
Zamia floridana SE USA to West Indies medium 21'F
Zamia furfuracea Coast Mexico little 25'F 28'F
