How to prune grapevines on an espalier fence: guide

Why prune grapevines on espalier fence

Pruning grapevines (Vitis) on an espalier fence is not random - it is architecture. An untrained vine shoots wildly upward and forms a tangle. On an espalier, with regular pruning, you create an elegant, flat framework where every shoot is systematically guided. This gives not only beauty but also far more grapes, because everything grows in sun and air.

An espalier vine also bears for years, sometimes twenty or more. It is worth the effort to prune well.

Espalier training: the foundation

A grapevine on espalier works with "wire guidance." You install horizontal wires (or thin wooden laths) 30-40 cm apart vertically. You wind your vine shoots around these wires. As your vine grows, you gently tie new shoots to these wires.

The system:

• Vertical posts 1-2 metres apart
• Horizontal steel wires from post to post, 30-40 cm apart
• Vine shoots tied to these wires in a V-shape or "ladder" pattern

This guides growth flat against the fence and creates a form that catches much sunlight.

Year 1: Planting and first training care

In the first year after planting (March), gently tie the main shoot of your young vine downward along the lowest horizontal wire, or upright along a vertical post if you prefer.

Remove all side shoots in the first season except two strong shoots on opposite sides above each other (for V-training). Tie these two shoots diagonally upward left and right on the second wire.

Water well the first season - grapevines anchor quickly to their supports and grow faster than you expect.

Year 2: Build the horizontal framework

In year two you probably have a V-shape with two primary shoots. Now you expand the framework.

Step 1: On each primary shoot, select the two strongest upward-growing side shoots. Tie these diagonally upward left and right on the next horizontal wire, in the same V-shape. Remove all other side shoots.

Step 2: Toward season's end (July-August), gently cut back the tip shoots, roughly 30 cm above where you tied them. This stimulates new side shoots low down.

Step 3: Any thin shoots growing out of form, you remove gently in July-August. Heavy pruning is not needed in year one.

After year two you have an elegant V with 4 primary arms spread over two horizontal wires.

Year 3 onward: Maintenance pruning

From year three onward it is maintenance. Grapes fruit on one-year-old wood (grown last season). This means:

In January-February (dormant pruning):

Cut all subsidiary shoots (small side shoots) that grew last season back to roughly 2-3 buds (eyes). This is called "spur pruning." You do not leave the whole stem, but only short protruding points with buds.

This sounds harsh, but it works: the plant regrows vigorously and bears heavily.

In May-June (summer pruning):

If shoots grow out of form, nip them off gently. Remove only shoots truly in the way. Too much summer pruning harms the plant.

In July-August (hanging-shoot pruning):

Shoots hanging long downward, cut back to roughly 10 leaves above your harvested grapes. This gives more air around the grapes and prevents moisture problems.

Thin the grapes (May-June)

If you see very many grape clusters in May-June, you may remove some. Sounds wasteful, but if you remove all clusters smaller than your hand and thin them to more than 40 cm apart, you get much larger, sweeter grapes.

Leave roughly 1 cluster per 40-50 cm shoot. Remove all others.

Frequently asked questions

My vine does not flower, why?

Possible causes: (1) Young plant (years 1-2) does not flower much yet. (2) Much nitrogen gives much leaf, no flowers. Add potassium (fruit fertiliser). (3) Too little light - remove overhanging leaves. (4) Wrong cultivar for your climate.

Can I cut my vine back hard?

Yes, but only if you must (neglected). Cut everything back to roughly 30 cm above ground. Your plant regrows fast, but you miss two, three seasons of fruit.

How long until harvest?

Year 1: almost nothing. Year 2: maybe 1-2 grape hands. Year 3: some clusters. Year 4+: full harvest, 5-10 kg per plant, depending on cultivar.

Which cultivars are good for espalier?

"Chasselas," "Riesling" (white) and "Regent" (red) are classic. "Savin Blanc" (fast grower) and "Solaris" (early ripen) are modern. Check if they ripen in your climate.

My vine gets mildew, what now?

Ensure air. Remove overhanging leaves around fruit. Loosen any shoots touching the clusters. Apply distance spray (sulphur) in spring.

Step-by-step

Step 1: Install wire support

Before planting, install horizontal steel wires 30-40 cm apart vertically between posts or fencing.

Step 2: Guide first shoot

Plant your vine. Gently tie the main shoot downward along the lowest wire.

Step 3: Choose two V-shoots

Select two strong shoots on opposite sides. Tie them diagonally upward left and right on the next wire.

Step 4: Expand framework

Each season tie new shoots upward in the same V-shape on next wires.

Step 5: Winter pruning

From year three onward, cut all subsidiary shoots in January-February back to 2-3 buds.

Small cultivar preferences

Chasselas: Classic table grape. Good on espalier. Good bearer.

Solaris: Modern, early ripen, few diseases. Ideal for cooler regions.

Regent: Red grape, productive, good espalier bearer. Reliable.

Tips for beautiful framework

• Tie shoots gently; they break easily
• Use soft twine or special binding tape
• Do not cut more than needed; vines recover fast but excessive pruning harms
• Check ties in May; they cut in as shoots thicken
• Remove old, dead shoots yearly that no longer fruit

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