Living in New Zealand, we have very limited choices of avocados. I've recently come across a new type - "Hayes" - which has been grafted on to Bacon rootstock.
Does anyone know how water/phytophthora tolerant Bacon root stock would be compared with Zutano?
Similarly does anyone know how frost tolerant Hayes avocados are? (We get a few nights a year where temperature falls to low negative centigrade - coldest I've recorded is -6°C (but over the last 2 years only -3°C, and only shortly after dawn).)