Start with the Space You Actually Have

A front garden is rarely generous. Between the path, the bin store and a metre of paving by the door, you may be working with a plot three to five metres deep and not much wider. That is still enough for a tree — but only if you choose one that will still fit in twenty years' time. Spend ten minutes with a tape measure before you fall for something in a nursery.

• Dimensions — measure the depth from house to boundary and the clear width. Note where the gate swings, where bikes and bins live, and how much of the plot you want to keep for planting under the tree.
• Light and shelter — a south-facing front garden bakes and dries; a north-facing one is shaded and often damp. Terraced streets funnel wind between houses, which can rock a young tree loose in its pit.
• Soil and drainage — front gardens are often compacted builder's subsoil with rubble just below the surface. Dig a 30cm hole, fill it with water and see how long it takes to drain. If it is still full after a few hours, choose something tolerant of wet roots.
• Services — look for inspection covers, and check your deeds or ask the utility provider about pipes and cables. Keep planting at least a metre clear of any you find.
• The pavement side — how close is the kerb? Do you need to keep sightlines clear for a driveway? Planting in the pavement itself almost always requires permission from your local council.

Mature Size Matters More Than the Pot

Almost every tree is sold young, usually between 1.5m and 2.5m tall, which makes even a future giant look manageable. The figure that matters is the ultimate height and spread on the label, and the phrase "slow growing" means it takes longer, not that it stays small.

For a compact front garden, aim for a tree with an eventual height of roughly four to six metres, or a columnar form that stays narrow. As a rough guide, a tree should reach no more than about two-thirds of the distance between it and the nearest building or neighbour's window. A tree six metres from a house can comfortably top out around four metres; one three metres from a boundary wants to stay under two metres of spread.

Roots, Foundations and the Pavement

Tree roots are shallower than most people imagine, mostly in the top 60cm of soil, but they travel well beyond the canopy in search of water and nutrients. They rarely break into sound drains, though they will exploit a pipe that is already leaking.

• From the house — allow at least three metres for a small tree, and five metres for anything vigorous. On shrinkable clay soils, give more room.
• From the boundary — 1.5 to 2 metres keeps branches and roots away from a neighbour's foundations and patio.
• From paving — roots can lift slabs and kerbs. Plant no closer than a metre to a kerb, and use a root barrier if the tree sits beside a driveway.
• Over the footway — foliage should be kept clear above head height over a public path, usually around 2.5 metres, and nothing should block a street light or sign.

Seasonal Interest That Earns Its Place

In a small garden every plant has to work hard, and a tree that only performs for a fortnight is a poor use of the space. Look for two or three seasons of value: spring blossom, autumn colour, winter bark or berries.

• Spring — crab apples, flowering cherries and amelanchier give blossom without overwhelming the plot.
• Autumn — amelanchier, field maple and rowan colour reliably in most soils.
• Winter — paperbark maples and white-stemmed birches carry the garden when little else does, while winter-flowering cherry and witch hazel add scent.
• Berries — rowans, hawthorns and crab apples feed the birds and hold colour into the new year.

Reliable Choices for a Compact Front Garden

• Amelanchier lamarckii — a multi-stemmed small tree, six to eight metres eventually, with white spring blossom, soft autumn colour and purple berries.
• Prunus 'Amanogawa' — a narrow, upright cherry that suits a tight gap between path and boundary.
• Malus 'Evereste' — compact, disease-resistant crab apple with white blossom and long-lasting orange fruits.
• Corylus avellana 'Contorta' — the twisted hazel, three to five metres, with winter catkins and sculptural bare stems.
• Acer griseum — slow-growing with peeling cinnamon bark, happy in a border where space is limited.
• Magnolia stellata — a genuinely small, slow tree for a sheltered spot, flowering on bare branches in early spring.
• Sorbus aucuparia 'Sheerwater Seedling' — an upright rowan with creamy blossom, scarlet berries and good autumn colour.

Where even these are too much, a large shrub trained as a standard, or a climbing plant on a discreet frame, can give the same height without the eventual bulk.

Planting Well and the First Two Years

Bare-root trees planted between November and March establish fastest and cost least, though container-grown trees can go in at any time when the ground is not frozen or waterlogged.

Dig a hole about three times the width of the root ball and no deeper than the roots sit naturally — the point where the trunk flares into the roots should end up level with the soil surface. Do not add fertiliser to the pit, but mulch 5–8cm deep over the root zone, keeping it clear of the trunk. Stake short trees with a single stake angled into the prevailing wind, and larger ones with a double stake and crossbar.

Water thoroughly on planting, then give roughly ten to twenty litres a week through the first two summers, more in dry spells. Keep a 60cm ring around the trunk free of grass and weeds, and resist pruning except to remove damaged branches. After that, a light tidy every few years — lifting low branches clear of the path and clipping anything reaching towards a window — is all a well-chosen small tree will ask of you.