Planting a tree feels like a big deal. And honestly, it is. A well-planted tree will be in your yard for decades. A poorly planted one might not make it through next summer.
The good news: planting a tree correctly isn’t complicated. Most of the mistakes I see come down to planting too deep, skipping the root prep, or neglecting water in the first year. Avoid those three things and you’re ahead of 90% of people.
Here’s how to do it right.
Before You Start: Pick the Right Spot
Before you dig, take five minutes to think about placement. Consider:
Mature size. That cute little tree in the 5-gallon pot might be 30 feet wide in fifteen years. Check the tag or look up the mature spread. Don’t plant it 6 feet from your house.
Sun exposure. Does the tree need full sun? Partial shade? Match the tree to the conditions.
Utilities. Look up. Are there power lines? Look down. Are there buried utilities? Call 811 before you dig. I’m serious — this is free, and it could save you a very expensive mistake.
Drainage. Most trees don’t want to sit in water. If the spot stays soggy after rain, pick a different location or choose a tree that tolerates wet feet.
Step 1: Dig the Hole
The hole should be 2–3 times wider than the root ball, but only as deep as the root ball is tall. This is the number one mistake: digging too deep.
When you set the tree in the hole, the root flare (where the trunk starts to widen at the base) should be at or slightly above ground level. If you can’t see the root flare, gently brush away soil or burlap from the top of the root ball until you find it.
A tree planted too deep will slowly suffocate. The bark at the base isn’t designed to be buried — it rots, the roots can’t breathe, and the tree declines over years. It’s a slow, sad death that’s entirely preventable.
Step 2: Prep the Root Ball
Container trees: Slide the tree out of the pot and look at the roots. If they’re circling the outside of the root ball (which they almost always are), you need to break them up. Use your hands to gently pull them apart, or score the sides with a knife in 3–4 places. This feels aggressive, but it’s essential. Circling roots will eventually girdle the trunk and kill the tree.
Balled-and-burlapped (B&B) trees: Set the tree in the hole first, then cut away the wire basket and burlap from the top third of the root ball. You don’t need to remove everything — the burlap below ground will decompose. But anything above the soil line needs to come off so it doesn’t wick moisture away from the trunk.
Bare root trees: Spread the roots out in the hole like a skirt. Don’t cram them in or let them circle. If a root is too long, trim it rather than bending it back on itself.
Step 3: Backfill
Put the original soil back in the hole. Don’t amend it with compost or fancy planting mix. I know that sounds counterintuitive, but research shows that amended backfill creates a “bathtub effect” — the roots stay in the cushy amended soil and never grow out into the native soil. You want roots to establish in the real ground, not in a bubble.
Backfill in layers, gently tamping as you go to eliminate air pockets. Don’t stomp on it — you’ll compact the soil. Firm but gentle.
When you’re done, the root flare should still be visible at or just above the soil surface.
Step 4: Water Deeply
Right after planting, give the tree a long, slow soak. Let the hose trickle at the base for 15–20 minutes. You want to saturate the root ball and the surrounding soil so everything settles in.
For the first growing season, water your new tree deeply once a week (twice a week in extreme heat). A slow trickle from the hose for 15–20 minutes is better than a quick blast. You can also use a gator bag — those green bags that wrap around the trunk and slowly release water. They’re great if you tend to forget.
Step 5: Mulch (But Not Against the Trunk)
Spread 2–3 inches of shredded hardwood mulch in a ring around the tree, starting about 3–4 inches away from the trunk and extending out to the drip line (or as far as you can manage).
Do not — I repeat, do not — pile mulch up against the trunk like a volcano. Mulch volcanoes are everywhere and they’re slowly killing trees all over the country. The moisture trapped against the bark causes rot, invites pests, and creates conditions for disease. Keep the mulch away from the trunk. Always.
To Stake or Not to Stake
Most trees don’t need staking. If the tree can stand on its own without leaning, leave it alone. A little trunk movement in the wind actually helps the tree develop a stronger trunk.
If the tree is top-heavy or in a windy spot and genuinely can’t stay upright, stake it loosely with two stakes and flexible ties. The trunk should still be able to sway. And remove the stakes after one year — leaving them on too long creates a weak trunk that can’t support itself.
What Not to Do
Don’t prune at planting. The old advice to “cut the tree back by a third” when you plant it is outdated. The tree needs all its leaves to photosynthesize and establish roots. Only remove dead, damaged, or crossing branches.
Don’t fertilize right away. New trees don’t need fertilizer in the first year. The roots are focused on establishing, not growing. Fertilizer pushes top growth at the expense of root development. Wait until year two.
Don’t wrap the trunk. Unless you’re in an area with severe sun scald issues on thin-barked trees (like maples), trunk wraps cause more problems than they solve by trapping moisture and harboring insects.
The First Year
The first year after planting is all about roots. Your tree might not put on much top growth, and that’s fine. It’s busy underground, building the root system that will support it for decades.
Keep watering. Keep the mulch ring intact. Leave it alone otherwise. By the second growing season, you should see noticeably more leaf growth and vigor.
And here’s the thing about trees: they’re patient. They don’t rush. The best time to plant a tree was twenty years ago. The second best time is right now.