Here in central Indiana there are several Calla cultivars that can be
overwintered successfully! I think we're zone 5 but are being reevaluated to
zone 6?
Josh
Anderson, IN
________________________________
From: "mhach@ix.netcom.com" <mhach@ix.netcom.com>
To: pbs@lists.ibiblio.org
Sent: Thu, October 21, 2010 11:52:11 AM
Subject: [pbs] Calla Hardiness
I agree with Ellen - many Callas are hardier than we think - I have seen a plant
that closely resembles Z.albomaculata (either a hybrid or selection of the
species) practically becoming invasive planted near the foundations of houses
in both New Jersey and Rhode Island. Although the house does provide a winter
buffer with the quantity of plants that were there they have been growing for
quite a while. I am sure that over time the tubers have also migrated deep into
the soil.
Marc
NJ USA