How to train fruit trees on wires

Espalier Apple Tree using wire supports

These instructions apply to fixing wires to existing fences or walls for training maiden fruit trees into cordons, espaliers, or fans.
If you are making rows of posts in your beds, it's best to run the rows North-South, meaning that they face East-West.

  • Cordons and espaliers are best for spur-fruiting apples & pears.
  • Fans are best for all stone fruit, and tip-bearing apples & pears.

Wire-Trained Fruit Trees Against an Existing Wall or Fence

Facing Direction of wall or fence Characteristics Suitable Plants
South Facing  Sunniest. Gets dry in summer, so mulching & watering are important.  All. Heat loving plants like Figs & Kiwis require South facing walls.
West Facing  Afternoon Sun. Good rainfall.  Cherries, Pears, Plums, Damsons, Gages, Apples, All Berry Bushes
East Facing  Morning Sun. Less rainfall & colder than West facing.  Cherries, Early Pears, Plums, Damsons, Gages, Apples, All Berry Bushes
North Facing  Least Sun - only certain plants will be able to make a decent crop.  Morello Cherries, Damsons, Early & Cooking Apples, Cordon Currants, Gooseberries, Blackberries

You will need 14 or 16 gauge galvanised fencing wire. 14 gauge wire is necessary for rows of cordons and espaliers, the thinner 16 gauge wire is fine for fan-trained trees and soft fruit.

The wire needs to be held away from the wall or fence, standing out by about 2-4 inches / 5-10cm. You could use wooden battens, or angled metal angle brackets to do this.

The spacing of the wires depends on what you want to grow:

Spacing Between Wires for Different Types of Fruit Tree

Fruit Tree Shape Wire Spacing
Diagonal Cordons Every 2 feet / 60cm
Fan Trained Trees Every 6 inches / 15cms. Start at 15 inches / 40 cm above the ground.
Espaliers Every 15-18 inches / 40-45cms. Start at 15 inches / 40 cm above the ground.

To make the wires nice and tight, you will need to use straining bolts at one end: you can fix the wire to these and then tighten them to make the wire taut. Ask your local DIY shop for advice.

Apple branch trained along wire and fastened