I grow the same Pinellia cordata clone ('Yamazaki') as Ellen, and have
found that none of the ones that I plant intentionally persist for more
than a year or two. However, the volunteers that fall out of pots or get
moved by the local vermin have found several sweet spots in the garden,
purely by chance. I have one such clump with a couple of inflorescences
open as I write. There are numerous instances of the odd leaf here and
there, too.
I winter over the ones in pots the same way as Judy, either in the
freezing garage or under the bench in the cool (38F) greenhouse. They
seem to be doing *very* well in the mild spring we've been having. There
was a quick hot spell a month ago to get things going, and warm to
downright chilly (39F last night, June 1) since then.
I vote for trying a few outside in NJ, but find some vermin to plant
them for you...
--Roy
NW of Boston
-7F last winter
> ----- Original Message -----
> From: "Ellen Hornig" <hornig@earthlink.net>
> To: "Pacific Bulb Society" <pbs@lists.ibiblio.org>
> Sent: Monday, June 01, 2009 8:36 PM
> Subject: Re: [pbs] Hardiness of Pinellia cordata
>
>
>> No, it hasn't been long-term hardy here - the younger ones tended to live
>> a couple of years and then disappear. The only ones I have now are in
>> pots.
>