Zantedeschia aethiopica ‘Croburgh Form’

Pure white Calla these are the hardiest type. Here is a post from one of the aroid forums ---thought I would inform Calla Lily lovers in cold climates of a species/form that will grow where winters can be cold. I live outside of Buffalo, NY (zone 6) and planted Z. aetheopica 'Crowborough' form. It survived the winter of 2006/07 and is beginning to put on good healthy vigorus growth. I was very casual about protecting it as our winter began extremely mild. That changed in the middle of January, however it still survived! We get snow cover that acts as insulation. I bought it from Arrowhead Alpines. It has not bloomed yet, but possibly this summer.____ZONE 6