#14 Multi-grafted English Walnut (Juglans regia)

posted Jan 11, 2012, 4:53 PM by Western Sonoma County Historical Society   [ updated Jan 12, 2012, 8:16 AM ]

Multi-grafted English Walnut

Mother tree used for grafting stems of hybrid seedlings so they'd grow and produce more quickly. The nuts and leaves on each branch are slightly different.

A mother tree used as understock for grafting hybrid walnut seedlings so they'd grow and bear nuts more quickly. Each major branch carries a different variety.

This particular tree is important because it is one of the last remaining examples of how Burbank conducted his experiments with fruit and nut trees.