temperatures below freezing will kill the tree. There are no frost/freeze
resistant varieties. It should be considered a zone10 plant, though some do
survive in protected areas in 9b.
"Mark" wrote in message
om...
Are there any hardy varieties of avocado that might do well in Zone 6
(USA)? I remember as a kid when Mom would start avocado plants from
seed, but I don't remember them ever actually growing or producing any
fruit.

Thanks,
Mark