A privacy hedge is the rare garden feature that pays you back every morning you sit outside with coffee, not worrying about who can see you. The catch is time. A row of slow-growing boxwood can take a decade to do its job, and most of us want screening before the neighbours' new deck is finished.

Choose the right shrubs and you can have a living wall in two or three seasons. The ten below all put on height quickly, tolerate shearing, and grow dense enough to block sightlines rather than just blur them. Spacing and aftercare notes follow, because a fast shrub planted badly still gives you a gap you can see through.

Ten Shrubs That Screen Fast

1. Leyland cypress

The standard for quick screening in mild-winter climates. Expect three to four feet of growth a year in decent soil and full sun. It makes a feathery, soft-textured wall, but it needs room — these plants get wide, and they sulk if you cut back into bare old wood. Give it space and prune lightly and often.

2. 'Green Giant' arborvitae

A better-mannered substitute for Leyland, adding two to three feet a year with a naturally conical shape that fills in at the base. It holds its colour through winter and stands up to wind. Deer browse it in many areas, so protect young plants or plan on a repellent routine.

3. 'Smaragd' arborvitae

The narrow option for tight lots and narrow side yards. Growth is slower than Green Giant — closer to a foot or two a year — but the slim, upright habit means you can plant a hedge in a strip only three feet wide. It wants sharp drainage; wet roots are the usual cause of failure.

4. Cherry laurel

Broad, glossy evergreen leaves and a willingness to grow in part shade make this a workhorse for shaded property lines. It grows two to three feet a year once established and takes hard pruning better than most conifers, sprouting back from old wood. Prune right after spring bloom if you want the flowers.

5. Waxleaf privet

Fast, tough, and forgiving, with fragrant white flower spikes in late spring and black berries in autumn. It shears into a formal wall beautifully. Check with your local extension office before planting, though — privet seeds around freely and is considered invasive in parts of North America.

6. Red tip photinia

New growth emerges bright red, which gives a hedge a seasonal lift. Growth is quick, often two to three feet a year. The catch is leaf spot, which can defoliate plants in humid regions. Leave more air between plants, avoid overhead watering, and choose resistant selections where you can.

7. Wax myrtle

A native of the southeastern United States with aromatic leaves and a loose, informal character. It grows fast, tolerates wet ground and salty air, and can be cut back hard. Left alone it suckers into a thicket, which is useful for a wildlife screen at the back of a large lot.

8. 'Chindo' viburnum

Big, leathery, glossy leaves give this shrub the look of a southern magnolia in miniature. It grows quickly into a dense, rounded screen, then covers itself with fragrant white flowers followed by red berries that birds work through in winter. Plant where you can smell it in spring.

9. Elaeagnus

Almost unkillable. Silvery leaf undersides, small fragrant flowers in autumn, and rapid growth in poor soil, wind and drought. That same vigour makes it a problem in some regions, where it seeds into natural areas. Use it where nothing else survives, and keep it trimmed before it flowers.

10. Holly, including 'Nellie R. Stevens'

Slower than the rest — a foot or two a year — but worth including for dense, deer-resistant evergreen structure and red winter berries. Clipping the young growth each spring pushes a thick, boxy habit. Berry production is heaviest when a male variety grows nearby.

Two more worth knowing: oleander, for hot, dry, frost-free climates and roadside-tough conditions; and clumping bamboo, such as Bambusa multiplex, for a narrow strip where you want screening in a single season. Avoid running bamboo unless you are prepared to install a proper root barrier.

How Far Apart Should You Plant?

Spacing is where most hedges go wrong. Measure from the centre of one trunk to the centre of the next, and space plants so their canopies will just touch at maturity, not today. Closer planting looks instant and then turns into a crowded row that dies out at the base.

• Leyland cypress: 5–8 feet apart, in a single row.
• 'Green Giant' arborvitae: 5–6 feet apart.
• 'Smaragd' arborvitae: 3–4 feet apart.
• Cherry laurel and photinia: 4–5 feet apart.
• Privet, wax myrtle, elaeagnus: 4–6 feet apart, depending on how formal you want the finish.
• 'Chindo' viburnum and holly: 5–6 feet apart.

For a deeper screen, stagger two rows, with the back row offset by half a spacing so the plants interlock. Keep tall screens well clear of overhead lines, and check property-line and homeowners' association rules before you dig. In many places you are required to call a utility locating service first.

Care That Keeps a Hedge Dense

The first two years decide everything. Water deeply — a slow soak at the roots rather than a daily sprinkle — once a week in dry weather, and more often in the first summer. Mulch two to three inches deep, keeping it a hand's width away from the trunk.

Prune lightly and often rather than hard and rarely. Trim evergreens in early summer, after the first flush of growth has hardened, and take off only a few inches at a time. Keep the top of the hedge slightly narrower than the base so sunlight reaches the lower branches; flat-topped hedges go bare at the bottom within a few years.

Feed sparingly. A light application of a balanced fertiliser in early spring is plenty for most soils, and overfeeding produces soft, floppy growth that needs more clipping. If leaves yellow between green veins, a soil test will tell you whether the problem is drainage, pH or a genuine nutrient shortage.

Finally, mix things up. A hedge of one species is fast and tidy, but a single disease or cold snap can take the whole run. Alternating two compatible shrubs, or repeating a block of three, gives you insurance and a more interesting texture.

Give the First Year to the Roots

Fast growers spend their energy above ground, and that is exactly why they need help below it. Plant in autumn or early spring, water through the first two summers, and resist the urge to shear a young hedge into shape before it has filled out. Once the roots are established, growth accelerates on its own — and the shrubs you chose for speed will start earning their keep. Then your only job is a pair of sharp shears and a warm afternoon. A hedge is a long commitment, so if your site is tight, shady or windswept, match the plant to the conditions before you buy, and you will spend your weekends enjoying the garden rather than replacing it.

Photo: PIRO4D / Pixabay