From: Steve Marak <samarak at gizmoworks.com>
on 2017.07.30 at 15:46:20(23791)|
I've experienced exactly what you describe here in NW Arkansas.
None of the Asian species I've tried outdoors here, including
sikokianum, candidissimum, ringens, fargesii, and others, last more
than about 5 years outdoors. They look good for a couple of years,
less good for a couple more, then just don't appear one spring. The
few I have now I keep in pots in the greenhouse, where they do fine
if I store them in the coldest corner over the winter.
We do have the arisaema rust here in native populations, and we do
grow the native species in the yard, but some of the Asian species
declined and disappeared without ever showing the characteristic
orange pustules you mention.
On 7/30/2017 3:27 PM, firstname.lastname@example.org|
Just wondering if anyone can
shed some light on the possible truth that the native species of
Jack and the pulpit can spread disease to the more exotic
members of the genus?
I used to have multiple ´groups of A. sikokianum grown from
seed and a clump of A. ringens that was over 3 foot tall.
One spring the ringens just didn't reappear and the few
ratty sikokianums that appeared had orange pustules on their
foliage. No problem with the native triphyllum 10 feet away in
There are voles in the garden but the triphyllum comes up
fine...just wondering if anyone can shed some light on
this...zone 6A garden in mid state CT..