Quick question. Annona cherimola, atemoya and some ornamental Annonas are more cold hardier.
My question is this, if I graft a Annona diversifolia, reticulata or others onto a cold hardy species will it then make the tropical species grafts cold hardy also?
The sap and or brix would be being delivered to the graft from the cold hardy root stock correct?
Could this work or be done?