Hardy Palm and Subtropical Board
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Posted by George in Bandon Oregon on 8/29/2017, 8:17 pm, in reply to "Re: Metrosideros."
Edited by George in Bandon Oregon on 8/29/2017, 9:40 pm
Brian, FWIW, cistus (www.cistus.com) nursery in Portland has offered m. umbellata for sale at times and may still have some for sale. IMHO, the potential concern about selections from the "sub-Antarctic" islands is that because of the extreme marine conditions the climate (for the Auckland islands for example) is indeed very cool and windy but don't think very cold in absolute terms with (I think) very little actual frost or snow so the practical "frost hardiness" of plants from that area may well be more limited than one might think from the (sub)Antarctic designation. populations from the higher and cooler elevations of the south island MIGHT actually be more resistant to PNW cold spells???
however, you never really can tell unless you try sometimes plants can surprise you with their actual hardiness despite coming from areas that because of their normally very mild native climates should not have any special frost resistance.
the upper southern oregon coast
USDA zone 9a (Sunset zone 5)
DRY cool summers and WET cool winters
grow eucalyptus, banksias, telopeas, grevilleas, bottlebrush, mexican pines and oaks