How deep should you plant a tree?

No deeper than the root ball is tall, so the root flare — the point where the trunk widens into the roots — sits at or slightly above the surrounding soil. Planting too deep is the single most common reason young trees decline and die, because buried bark suffocates and rots. The hole should be wide, two to three times the width of the root ball, but never dug deeper than the ball itself. When in doubt, plant a little high rather than a little low; the tree will settle.

What is the best time of year to plant a tree?

Fall and early spring are ideal in most of the United States, because cool air and warm soil let roots establish without the stress of summer heat. Fall planting, roughly six weeks before the ground freezes, gives roots a head start before the next growing season. Spring planting works well in colder zones where fall is short. Avoid planting in the heat of summer or into frozen ground. Container-grown trees are the most forgiving and can be planted through most of the growing season with diligent watering.

Should you stake a newly planted tree?

Only if it needs it. Most trees establish stronger trunks and root systems when left to sway naturally, so staking is not automatic. Stake only bare-root trees, top-heavy trees, or trees in very windy or high-traffic spots. When you do stake, use two low, loose ties that allow the trunk to move, place them at the lowest point that holds the tree upright, and remove the stakes after one growing season. Ties left on too long girdle and damage the trunk.

How much should you water a newly planted tree?

Deeply and regularly for the first two to three years, which is how long establishment takes. A common guideline is 10 to 15 gallons per week during the growing season, delivered slowly so it soaks the root zone rather than running off, and adjusted down in cool or wet weather. Water at the root ball and just beyond it, since that is where the roots are. Check soil moisture a few inches down with your finger; water when it is dry, and back off once the tree is established.

Should you add fertilizer or amendments when planting a tree?

Generally no. Research from extension services consistently finds that backfilling with the native soil you dug out, rather than rich amended soil, encourages roots to grow outward into the surrounding ground instead of circling in a cushy pocket. Skip fertilizer at planting too; it can burn tender new roots and pushes top growth the young root system cannot yet support. The exceptions are genuinely poor soils, and even then a light compost blend and a soil test come first.

How to Plant a Tree the Right Way (Depth, Width, Aftercare)

Written & researched by Elena Marsh Gardening & Landscaping Editor

Updated June 2026

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To plant a tree correctly, dig a hole two to three times as wide as the root ball but no deeper than the ball is tall, so the root flare sits right at ground level. Loosen and straighten the roots, set the tree straight, backfill with the native soil you removed (not amended soil), water thoroughly to settle it, and finish with a wide, shallow ring of mulch kept off the trunk. Then water deeply and regularly for the first two to three years. Get the depth and width right and the rest is straightforward.

Most young trees that fail do so because they were planted too deep, too narrow, or never watered through establishment — all avoidable. Our tool and product rankings come from aggregated owner reviews and expert consensus rather than first-hand testing; see how we rank.

When to plant

Timing sets the tree up to root before it has to cope with heat. In most of the country, the two best windows are fall and early spring.

Season	Best for	Notes
Fall (6+ weeks before freeze)	Most zones, especially 5 to 8	Warm soil, cool air; roots grow before summer
Early spring	Cold zones 3 to 5	Plant as soon as soil is workable
Summer	Container trees only, with care	Heat stress; requires heavy watering

Bare-root trees must go in while fully dormant, in late winter or very early spring. Container-grown and balled-and-burlapped trees are more flexible. Whatever the season, avoid frozen or waterlogged ground.

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Choosing and preparing the site

Where a tree goes matters more than any planting technique, because you are choosing its conditions for decades. Before you dig, check three things.

Call 811 first. This free service marks buried utility lines a few days before you dig. It is the law in most states and prevents a dangerous, expensive mistake.
Give it room to grow. Picture the mature height and spread, not the sapling. Keep large shade trees at least 15 to 20 feet from the house and clear of overhead power lines and septic fields.
Match the tree to the light and soil. Sun-loving species sulk in shade, and a tree that needs good drainage will drown in heavy clay. Improve stubborn clay across the whole bed rather than in the planting hole; see how to improve clay soil.

Digging the hole: wide, not deep

The shape of the hole is where most planting jobs succeed or fail. The goal is a broad, shallow bowl that encourages roots to spread sideways into loosened soil.

Measure the root ball height and dig the hole exactly that deep — no more. On firm ground, leave the bottom undug so the tree cannot sink.
Dig two to three times as wide as the root ball, with gently sloping sides rather than a smooth, glazed wall that roots struggle to penetrate.
Roughen the sides with the shovel or a fork so roots can grow out easily.
Find the root flare. Scrape soil off the top of the ball until you see where the trunk flares into the first main roots. That flare must end up at or just above grade, which often means the top of the container root ball needs to sit a little proud of the surrounding soil.

For hard or compacted ground, a post-hole digger speeds the work and keeps the hole tidy, though a spade is fine for a single tree.

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Setting and backfilling the tree

With the hole ready, handle the roots carefully — this is your one chance to correct how they will grow.

Remove all wrapping. Take the tree out of its container. For balled-and-burlapped trees, set them in the hole, then cut away and remove twine, wire baskets, and as much burlap as you can reach.
Free circling roots. On a container tree, if roots circle the ball, tease them loose or make a few shallow vertical cuts down the sides. Circling roots left alone can strangle the trunk years later.
Set the tree straight at the right depth, viewing it from several angles. Adjust before backfilling.
Backfill with native soil in stages, firming gently by hand to remove air pockets. Do not stomp it down hard, and do not amend it with rich compost or potting mix, which discourages roots from leaving the hole.
Build a watering berm. Shape a low ring of soil at the hole's edge to hold water over the roots.

Watering and mulching

The first watering settles the soil and eliminates air pockets, so it matters as much as any step. Water slowly and deeply right after planting until the whole root zone is saturated.

Then mulch, correctly:

Spread 2 to 4 inches of mulch in a wide ring, ideally out to the drip line, to conserve moisture and moderate soil temperature.
Keep mulch 2 to 3 inches off the trunk. The "mulch volcano" piled against the bark holds moisture against it, invites rot and rodents, and slowly kills the tree. A flat doughnut, not a cone.

Choosing the right material makes a difference; see best mulch for beds for the options and how they compare.

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To stake or not to stake

Skip staking unless the tree genuinely needs it. Trees left to move in the wind develop stronger trunks and better-anchored roots, so staking a stable tree does more harm than good.

Stake only when the tree is bare-root, unusually top-heavy, or in a very windy or high-traffic location. When you do:

Use two stakes on opposite sides with broad, soft ties (never bare wire against bark).
Place ties low — at the lowest point that keeps the tree upright — and leave enough slack for the trunk to sway.
Remove everything after one growing season. Ties left on girdle the trunk as it thickens.

The first two to three years

Planting is the easy part; establishment is the two-to-three-year job that decides whether the tree lives. The roots have to grow well beyond the original ball before the tree can fend for itself.

Task	How
Water	10 to 15 gallons weekly in the growing season, slow and deep, adjusted for rain
Mulch	Refresh to keep 2 to 4 inches, always off the trunk
Fertilizer	None at planting; wait until the tree is established, and only if a soil test shows a need
Pruning	Remove only dead, damaged, or crossing branches the first year; save shaping for later

Check soil moisture a few inches down before watering rather than watering on a fixed schedule, and taper off once new growth shows the tree has taken hold.

The bottom line

Plant wide, not deep; keep the root flare at grade; backfill with native soil; water in thoroughly; and mulch in a flat ring off the trunk. Then commit to deep, regular watering for two to three years. Those few fundamentals prevent nearly every young-tree failure, and they matter far more than any product or amendment.

For more on ground prep, drainage, and hardscape around your new tree, see the landscaping and hardscaping hub, including best mulch for flower beds.

How to Plant a Tree