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  Re: Various Minimum Temperatures
From: "Alan Galloway" alan_galloway at bellsouth.net> on 2001.05.29 at 02:20:21(6590)
Subject: Various Minimum Temperatures

> Is there a listing somewhere that of minimum temperatures required by the
> various species of Amorphophallus? I am trying to find out which are the
> tropical varieties and which will take frosts etc.

Paul, off the IAS web site, check out the list of hardy aroids,

> I know that varieties
> like bulbifer and konjac are fine in frost, but what others are?

Here in Raleigh, NC, USA, USDA-zone#7, the following are also
cold hardy:
Amorphophallus napalensis
Amorphophallus odoratus

I'm testing/will be testing the following for cold-hardiness:

Amorphophallus henryii
Amorphophallus kisusianus
Amorphophallus albus

> I am also after similar temperature information for Alocasias, Colocasias,
> Typhoniums and Xanthosoma species. I was reading back through some of the
> stuff that I've saved regarding aroids and noticed that one person in Zone
> 5 mentioned that Typhonium giganteum was hardy there (I assume dormant in
> winter?) so there are obviously some varieties that take the cold.

It is extremely cold hardy, as is Typhonium roxburghii (formerly T.


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