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Hedge and Tree Spacing Calculator
Find how many plants you need for a hedge or tree row, spaced correctly for mature width and screening speed.
Spacing plan
Tighter spacing screens faster but increases long-term crowding and pruning needs.
Spacing is a tradeoff, not a fixed rule
There's no single correct spacing for a hedge or tree row — it's a tradeoff between how quickly you want a solid screen and how much long-term crowding, pruning, and disease pressure you're willing to manage. Plant too close and branches compete for light and airflow, increasing fungal disease risk and forcing more frequent pruning to keep the hedge in bounds. Plant too far apart and you'll wait years longer for gaps to fill in, if they ever fully do.
The mature-width rule of thumb
The standard starting point for hedge spacing is a fraction of the plant's mature width — the width it reaches at full size, not its size at planting. For a fast, dense screen, space plants at about half their mature width so canopies overlap and knit together sooner. For a healthier long-term hedge with less crowding-related disease and pruning burden, space closer to two-thirds of mature width, accepting a slightly longer wait for full coverage.
| Goal | Spacing as % of mature width | Tradeoff |
|---|---|---|
| Fast privacy screen | 40-50% | Screens quickly but needs more frequent pruning and thinning |
| Balanced hedge (most common) | 60-70% | Reasonable fill time with manageable long-term maintenance |
| Specimen trees / windbreak trees | 90-100%+ | No canopy overlap, minimal competition, slower initial screening |
Single row vs. staggered double row
A single row of evenly spaced shrubs is the simplest and most common hedge layout, and works well for most residential privacy screens and boundary hedges. A staggered double row — two parallel rows offset so each plant in the second row sits in the gap between plants in the first — creates a denser, more solid visual screen faster, which is popular for windbreaks or where an unbroken sightline matters immediately rather than after a few years of growth. The tradeoff is needing roughly twice the plants and a wider total footprint.
Trees need more room than hedge shrubs
When trees are planted as individual specimens or as a windbreak row rather than a dense clipped hedge, spacing should generally avoid canopy overlap altogether, since crowded tree canopies compete heavily for light and can develop structural weaknesses from lopsided growth reaching for open space. Standard spacing for specimen or windbreak trees is close to their full mature canopy width, sometimes slightly more for species with aggressive root systems that compete belowground as well as above.
Practical planting tips
- Mark spacing with stakes and string before digging to keep the row straight and evenly spaced.
- Dig planting holes twice as wide as the root ball but no deeper, to avoid settling issues.
- Water deeply and consistently for the first one to two growing seasons while roots establish.
- Mulch the full row rather than individual plants to suppress weeds and retain moisture evenly.
- Expect visible gaps for the first one to three years even at correct spacing — hedges fill in gradually as they mature.
How close together should I plant a hedge for fast screening?
For fast, dense screening, space plants at about half their mature width, which encourages branches to knit together sooner at the cost of more plants and more crowding-related pruning later. For a healthier long-term hedge with less disease pressure, spacing closer to two-thirds of mature width is usually better.
Why do trees need wider spacing than hedge shrubs?
Trees are typically planted as specimens or windbreaks rather than as a continuous screen, so spacing accounts for full mature canopy width without overlap, which reduces competition for light and root space and lowers long-term disease and structural problems from crowded canopies.
Should I stagger a double row for a thicker hedge?
Yes, a staggered double row (offset in a zigzag rather than two straight parallel lines) creates a denser visual screen faster than a single row, and is common for windbreaks or privacy hedges where you want no sightline gaps.
Does spacing change for evergreen vs. deciduous hedges?
Not dramatically for spacing itself, but evergreens used for year-round screening are often planted slightly closer than deciduous hedges, since deciduous hedges only need to knit together during the leafed-in months and gaps are more acceptable in winter.
Last reviewed February 2026