Difference between revisions of "SPECIES ZONE SCALE 1A: The Windmill Zone"

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Revision as of 15:43, 17 February 2011

Ranking is from more hardy to less hardy.
If a Phoenix canariensis is hardy in your area, so is everything else on this page.

  • Sabal minor (4.5/-15.3)
  • Rhapidophyllum hystix (4.8/-15.1)
  • Trachycarpus fortunei (10.6/-11.9)
  • Sabal palmetto (11.2/-11.6)
  • Washingtonia filifera (12/-11.1)
  • Butia x Jubaea (13/-10.6)
  • Jubaea chilensis (13.5/-10.3)
  • Brahea armata (13.5/-10.3)
  • Butia capitata (14.3/-9.9)
  • Nannorops ritchiana (16/-8.9)
  • Sabal uresana (17.7/-8)
  • Chamaedorea microspadix (18.7/-7.4)
  • Phoenix theophrasti (19/-7.4)
  • Phoenix dactylifera (19/-7.2)
  • Butia x Syagrus (19.2/-7.1)
  • Livistona chinensis (19.6/-6.9)
  • Brahea edulis (20.2/-6.6)
  • Chamaedorea radicalis (20.3/-6.5)
  • Trithrinax acanthocoma
  • Trithrinax biflebellata
  • Jubaea x Syagrus
  • Butia x Parajubaea
  • Phoenix canariensis (20.8/-6.3)

Realistically, this zone is not really a subtropical zone, but more of a humid temperate zone... it is listed here as subtropical because it is a continuum of zones that are consistently humid, and tend to not have prolonged cool periods- either cold or warm. Summers are hot and humid and nights tend to be relatively warm and humid, too. Winters are much different, though, and can be extremely cold (colder lows than 'equivalent' Mediterranean climates). However, cold temps are often quickly replaced by warm temps, especially as you go move from zone to zone... this is in contrast to Mediterranean climates which tend to be more moderate, with less extreme highs and lows... but most importantly have very long cool periods characterized by low humidity.

Since I don't live in a subtropical climate, it would be hard for me to comment intelligently on some of these palms... but I was not aware that Brahea edulis performed that well in such a climate. Brahea armata, for that matter, either. I know some have gotten to to survive, but seems unlikely that they would with in climates where these other ones would.Palmbob 16:55, 22 July 2007 (PDT)

Several sources, including the newest Betrock's guide to Cold hardy palms, lists Rhapidophyllum as hardy to -5F... which is significantly more cold hardy than S minor. This book is written from a subtropical point of view, so I think it would apply to this list.Palmbob 17:02, 22 July 2007 (PDT)