How many hedge plants per metre do I need?

For a single row hedge, plant 3 plants per metre for most species (beech, privet, yew, hornbeam). Larger species like laurel need 2 per metre. For a thicker double-staggered row, use 5 plants per metre (or 3 for laurel). Hawthorn and mixed native hedges use 4-7 per metre for a dense stock-proof hedge.

What is double-staggered planting for hedges?

Double-staggered planting means two rows of plants in a zigzag pattern. The rows are typically 300-400mm apart, with plants offset so each plant in one row sits between two plants in the other. This creates a much thicker, denser hedge more quickly and is recommended for boundary hedges and screening.

Should I use mycorrhizal fungi when planting a hedge?

Yes, mycorrhizal fungi significantly improve hedge establishment. These beneficial fungi form a symbiotic relationship with plant roots, extending the root network and improving water and nutrient uptake. Apply mycorrhizal granules directly to the roots at planting time. One sachet typically treats 5 plants.

When is the best time to plant a hedge in the UK?

The best time to plant bare-root hedging is November to March when plants are dormant. Avoid planting in frozen or waterlogged ground. Container-grown plants can be planted year-round but will need regular watering in summer. Autumn planting (November-December) gives roots time to establish before spring growth.

How deep should I dig a hedge trench?

Dig the trench at least 300mm deep and 400mm wide for most hedging species. For larger rootballs (laurel, yew), go to 400mm deep and 500mm wide. Loosen the bottom of the trench to improve drainage. Mix excavated soil with compost (50/50) for backfilling. The root flare should sit at ground level, not buried.

TradeCalculator

Hedge Planting Calculator

Calculate plants per metre, trench dimensions, compost and mycorrhizal fungi for hedge planting. UK native and ornamental species.

Hedge Length

Total hedge run

Species

Affects spacing and plant density

Planting Style

Double staggered gives a thicker hedge

Include mycorrhizal fungi

Improves root establishment and growth

Price Per Plant (optional)

Your supplier's price per hedging plant

How We Calculate This

This calculator determines the number of hedge plants based on species-specific spacing rates for single or double-staggered rows. It also calculates trench dimensions, compost, mulch and optional mycorrhizal fungi.

The formula

Plants = Hedge length × Plants per metre (species-specific)
Trench volume = Length × Width × Depth
Compost bags = Trench volume ÷ 0.04 m³ (40L bag)
Mulch bags = Length × (Width + 0.2m) × 0.075m depth

For a 20m beech hedge in double staggered rows: 20 × 5 = 100 plants, trench 0.4m wide × 0.3m deep = 2.4 m³, needing 60 bags of compost.

Species spacing guide

Privet/Beech/Yew/Hornbeam: 3/m (single) or 5/m (double)
Laurel/Leylandii: 2/m (single) or 3/m (double) — larger plants
Hawthorn: 4/m (single) or 6/m (double) — stock-proof density
Mixed native: 4/m (single) or 7/m (double)

Frequently Asked Questions

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Last updated: March 2026

All calculations are estimates. Verify with your supplier.