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  Philodendron selloum (non-aroid temperate alternatives)
From: Dean Sliger deanslgr at juno.com> on 2001.12.13 at 11:18:19(7907)
On Thu, 13 Dec 2001 09:44:53 -0600 (CST) StellrJ@aol.com writes:
> But isn't Gunnera also tropical? Those others should work, though;
> Petasites is native along the US Pacific Coast, Rheum (i.e.,
> rhubarb) is from the Himalayas.

Without looking it up, I think subtropical would be more correct for
Gunnera. They're more from higher altitude regions rather than the
lowland tropics. The miniature Gunnera magellanica is winter-hardy here
in Zone 6B (Detroit area) without protection. The larger species are
winter-hardy in this area with protection (though not in my
space-prohibitive yard!). With the miniature species, at least,
protecting it from winter desiccation is a major factor in survival.
I've noticed with many species winter-hardiness is a matter of soil
moisture -- too much or too little, depending on the species -- rather
than temperature.

Dean Sliger

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