What rootstock should I choose for grape varieties? I am not sure e.g. 3309, 101-14 e.t.c. my soil is loamy and in zone 6a
Does anyone know what difference there is in Pinot Noir 667 on 3309, or Pinot Noir 777 on 3309? There is also Pinot Noir 115 on SO4. What do each of these mean?