SPECIES ZONE SCALE 1B: The Butia Zone
Ranking is from more hardy to less hardy.
If a Sabal palmetto is hardy in your area, so is everything else on this page.
- 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)
- Phoenix canariensis (20.8/-6.3)
- Sabal causiarum (20.9/-6.2)
- Dypsis decipiens (21/-6.1)
- Hyphaene petersiana (21/-6.1)
- Rhapis excelsa (21.2/-6)
- Rhapis humilis (21.3/-6)
- Guihaia argyrata (21.7/-5.7)
- Trachycarpus martiannus (21.6/-5.8)
- Livistona australis (22/-5.6)
- Butia paraguayensis
- Washingtonia robusta (22/-5.6)
No way is Trachycarpus martianus nearly as cold hardy as a Washingtonia... mine was defoliated completely this winter, and my neighbor's Washingtonias has no damage at all. Rhapis humilis is probably less cold hardy, too, but not sure about that. I seriously doubt Hyphaene petersiana is more cold hardy, either, but no personal experience with that one... the other Hyphaenes sure aren't. To me, this is a very narrow zone, as I rarely see damage on Washingtonias without similar damage to P canariensis... I personally would rate them equal, with most of the plants listed here as being less hardy than either.
Seems odd to include Juania in a subtropical list as I know of no subtropical climate in which this species can be grown.. do you?Palmbob 16:53, 22 July 2007 (PDT)