Difference between revisions of "SPECIES ZONE SCALE 1B: The Butia Zone"

Revision as of 15:54, 17 February 2011

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

• 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)