Espalier Apple | 3-in-1 ComboA Combo Espalier is a fruit tree that combines multiple varieties grafted onto a single rootstock and is trained using the espalier technique. Each horizontal tier of the espaliered tree displays a different fruit variety, creating a compact, space saving design that produces a diverse harvest. This method is ideal for small gardens or urban spaces, where the tree can be grown against a wall, fence, or trellis while maximizing fruit production and