Growing Apples in a Small UK Garden

Why a Wall Is the Best Friend of a Small Garden

A single cordon apple tree takes up about 60 to 75cm of border space and will happily crop for fifteen years or more. That is less ground than a decent clump of lavender, and it gives you fruit you can pick without a ladder. An espalier, trained flat along horizontal wires, spreads to three or four metres but stays barely 30cm deep, so it slots neatly behind a herb bed or along a path without swallowing the garden.

The trick is to think vertically. Apples trained flat against a sunny wall or fence take full advantage of reflected warmth, which ripens fruit earlier and sweetens varieties that would otherwise struggle in a cool northern summer. Espaliers also make picking a pleasure rather than a chore, because every apple hangs at arm's height, easy to see, easy to reach, and easy to inspect for wasps and bruising.

Choose the Right Rootstock Before Anything Else

Rootstock decides how big the tree wants to be. Get this wrong and you will spend years hacking back an overgrown monster.

• M9 – very dwarfing, ideal for cordons and stepovers. Needs good soil and staking for life.
• M26 – semi-dwarfing, the classic choice for espaliers and fan-trained trees on walls. A sensible, forgiving middle ground.
• MM106 – too vigorous for most small plots unless you are training a large espalier over a garage wall.

Next, pick spur-bearing varieties rather than tip-bearers. Spur-bearers produce fruit on short, stubby sideshoots and respond beautifully to pruning. Reliable, widely grown choices include Discovery, an early red flushed apple ready in late August; Egremont Russet, nutty and excellent stored; Katy, juicy and partially self-fertile; and Scrumptious, sweet, crisp and self-fertile, which is a godsend in a garden with room for only one tree. If you fancy a cooker, Bramley is wonderful but a triploid, so it needs two compatible pollinators nearby.

Check pollination groups when buying. A neighbour's crab apple within a few hundred metres often does the job, but if you are planting two cordons, pick varieties from the same or adjacent groups.

Planting a Cordon or Espalier Properly

Bare-root trees planted between November and March establish far better than potted ones, and they are cheaper. Pick a spot with at least six hours of sun, ideally a south or west-facing wall, and keep 30 to 40cm of clear soil between the trunk and the wall so air can move and rain can reach the roots.

• Dig a hole wide enough to spread the roots, but no deeper than the old soil mark on the trunk.
• Fix horizontal galvanised wires to the wall at 45cm intervals, held 10cm proud on vine eyes.
• For a cordon, plant at a 45-degree angle and tie the stem to a bamboo cane secured to the wires.
• Water in well, mulch with well-rotted manure, and fit a sturdy stake or two for the first few years.

Never plant where an old apple or rose has grown. Replant disease will sulk for years; move the position or renew the soil first.

Summer Pruning Does the Heavy Lifting

Apples trained this way are pruned in late July and August, not winter. This keeps growth in check and encourages fruiting spurs rather than leafy wood.

On a cordon, cut every sideshoot back to three leaves above the basal cluster of leaves. On an espalier, do the same along the horizontal arms, and tie in the extension growth of the arms themselves to the wires, pinching out anything that tries to grow forwards into the garden. Cut out anything growing straight towards the wall or straight out from it.

In winter, take a walk along the tree and remove just the tired, crowded or damaged shoots, plus the odd spur that has become a tangle. If you keep the summer routine going, winter pruning takes twenty minutes with a cup of tea in hand.

Feeding, Watering and Encouraging the Right Company

Apples on dwarfing rootstocks are shallow-rooted and thirsty. Water thoroughly once a week in dry spells during the growing season, and give a high-potassium feed from June to help the fruit swell. Keep a 60cm weed-free ring around the base, because grass competes badly for moisture and nutrients.

A wildlife-friendly approach pays dividends here. Leave a small patch of nettles or wildflowers nearby to bring in hoverflies and ladybirds, which munch aphids, and let birds patrol the tree in winter by avoiding broad-spectrum sprays altogether. A grease band around the trunk in October stops winter moth females climbing up, and a pheromone trap hung in June sorts out codling moth without harming anything else. Fallen fruit should be cleared each evening, since it is the nursery for next year's pests.

Harvesting and Storing Your Crop

Cup an apple in your palm and lift gently with a twist. If the stalk parts easily, it is ready. Early varieties like Discovery are best eaten straight from the tree within a fortnight, so pick and enjoy them, and don't be precious about a few wasp-tasted windfalls. Later varieties, including Egremont Russet and any Bramley, will keep for months in a cool, dark, frost-free shed or garage. Wrap them individually in newspaper, store them in single layers in shallow trays, and check weekly for the telltale soft brown bruise that means one bad apple is about to spoil the lot.