Mollison recently mentioned that in Tuscanny Italy the grapes are grown in the same hole as a support tree such as the elm But he didn't mentioned which Elm species??? Do you know - Also - what other trees can be used The Elm supports and protects the grapes from fire so the theory goes, in classical Greece they used Mulberry. What else can be used or is in use??? Thanks in advance - April of Permaculture Visions Mt Kembla NSW Australia