Why the First Three Years Decide Everything

Planting a tree is the easy part. The months and years that follow are where most losses happen, and rarely because of poor planting technique. In most UK planting schemes, a good proportion of whips fail in their first two seasons, and the culprits are almost always the same three: drought, competition from grass, and something with teeth. Think of a young tree as a patient recovering from surgery. It needs steady conditions and a bit of protection, not dramatic gestures.

The aftercare routine below is simple enough for a backyard copse or a small community wood, and it works just as well on a few hundred saplings in a field corner.

Watering: Deep and Occasional Beats a Daily Trickle

For the whole of its first season, a newly planted tree's roots are still largely confined to the original planting hole. Watering needs to soak that root ball and the soil around it, not just dampen the surface where weeds will steal it.

• Give 10–20 litres per tree once or twice a week in dry weather, from April through to September, for the first two years.
• A slow trickle is far better than a fast douse. A can with a rose, or a punctured bucket left to drain beside the trunk, delivers water where it is needed.
• Water in the early morning or evening to cut evaporation losses.
• Push a finger or a trowel 10cm into the soil before watering. Damp and crumbly means you can skip a session; dry and dusty means double up.
• In the third year, ease off and water only during prolonged drought.

Sandy and chalky soils dry out quickly, so expect more sessions there. Heavy clay holds moisture but can waterlog, so don't add more when the ground is already soggy. A lone oak in the middle of a field will always need more help than a whip tucked into an established hedgerow.

Mulch: The Cheapest Help You Can Give

If you do only one thing beyond watering, mulch. A ring of well-rotted woodchip, bark or composted green waste does three jobs at once: it holds moisture in the soil, suppresses the grass and weeds that compete for it, and moderates soil temperature so roots keep growing through autumn.

• Spread a layer 5–8cm deep, over a circle 50–100cm across.
• Keep the mulch clear of the trunk by a good hand's width. Piling it against the bark traps damp and invites rot.
• Refresh the ring each spring for the first three years, topping up rather than rebuilding.
• Never mulch over dry soil without watering first — you will simply seal in the drought.

Avoid fresh manure or unrotted grass clippings, which can heat up, sour and damage young roots.

Guards, Ties and the Wildlife That Wants a Snack

Rabbits will ring-bark a whip overnight. Deer browse the leading shoot. Voles gnaw bark just below ground, where you least expect it. Match your protection to the local pressure: spiral guards for rabbits, taller tree shelters where deer are present, and a mesh guard pressed a few centimetres into the soil where voles are a problem.

Stakes should be 1.2–1.5 metres and driven in on the windward side, ideally before planting so you don't disturb the roots. Tie with a figure-of-eight loop to allow the trunk to move slightly — a tree that never flexes grows weak. Check every tie twice a year and loosen as the trunk fattens; a tie cutting into bark can kill a tree as surely as a rabbit. Remove the stake after two or three years once the tree stands on its own, and check everything after gales.

If a leading shoot is nibbled out, don't despair. Choose the strongest side shoot, tie it gently to a cane to train it upward, and the tree will usually re-form a leader within a season.

Weeding: Grass Is the Real Enemy

Grass looks harmless. It isn't. Young roots compete poorly for water and nutrients, and a metre of vigorous grass around a whip can halve its growth in the first year. Keep a clear circle at least 50cm across, and a metre is better.

Hand-pull, hoe shallowly, or use a mulch mat. Take particular care with strimmers, which are a classic cause of fatal bark wounds — use a guard, or clear by hand close to the trunk. Where spot treatment is genuinely needed, apply carefully to the grass around the guard on a still day and never let it touch green bark or foliage.

Checking, Replacing and Knowing When to Let Go

Walk your planting every few weeks through the growing season. Look for dieback, stripped bark, a snapped leader, ties biting in, or guards clogged with leaves and debris. Replace failures in the next bare-root season, roughly November to March, while the trees are dormant.

Accept that some losses are normal. A tenth of your whips failing over the first few years is not a disaster, and gaps filled by natural regeneration often add useful diversity. After four or five seasons, resist the urge to fuss. Step back, let the canopy begin to close, and enjoy watching a wood start to look after itself.