How to plant a tree correctly

Planting a tree looks simple, and that is exactly why so many die young. The truth is that a tree's entire future is decided in the first hour it goes in the ground — the depth, the hole, the backfill, and the water it gets while it roots. Get those right and your tree practically raises itself.

Whether you are putting in a live oak that will outlive the house or a small flowering tree by the patio, the method is the same. Here is how to plant a tree correctly in a Florida yard, step by step.

Start by finding the trunk flare

Before you dig, find the trunk flare — the point where the trunk widens and the first main roots spread out. Nursery containers often bury the flare under an inch or two of soil, and planting that deep is one of the most common ways to slowly suffocate a tree.

Brush away soil from the top of the root ball until you can see the flare. That flare needs to sit at or slightly above the surrounding ground when you are done.

Dig wide, not deep

Dig the planting hole two to three times as wide as the root ball, but no deeper than the root ball is tall. Our sandy soil settles, and a hole dug too deep lets the tree sink so the flare ends up underground.

Roughen the sides of the hole rather than leaving them slick, so roots can push out into the surrounding soil instead of circling.

Set the tree at the right height

Place the tree so the trunk flare sits at grade or an inch high. Step back and check it from two directions to make sure it is straight before you backfill — it is far easier to adjust now than later.

If the tree is root-bound, gently tease apart or slice any circling roots so they grow outward rather than strangling the trunk over time.

Backfill with native soil

Resist the urge to fill the hole with rich potting mix or heavy amendments. Backfill with the same native soil you dug out, so roots learn to grow in the ground they will actually live in rather than staying inside a cushy pocket.

Firm the soil gently to remove air pockets, but do not stomp it into a compacted mass.

Water deeply, then mulch

Water slowly and deeply right after planting to settle the soil and hydrate the roots. Then spread a two-to-three inch layer of mulch in a wide ring — and keep it several inches away from the trunk, never piled against it.

Mulch conserves moisture, moderates soil temperature, and keeps mowers and trimmers away from the bark.

Skip the stakes (usually)

Most trees establish stronger trunks when allowed to flex in the wind, so skip staking unless the tree is top-heavy or in a very windy, exposed spot. If you must stake, do it loosely and remove the stakes after the first growing season.

A trunk that sways a little grows thicker and more storm-resistant than one held rigid.

Water through establishment

The single biggest factor in survival is consistent water during the first few months. Water deeply a few times a week at first, then gradually stretch the interval as roots reach into the surrounding soil over the following months.

After the first year or two, a well-chosen Florida tree should need little or no supplemental water in a normal year.

Skip the fertilizer at planting

A newly planted tree does not need fertilizer; it needs to grow roots. Heavy feeding at planting pushes top growth the young root system cannot yet support and can even burn tender roots.

Hold off, water well, and let the tree settle in. If you ever fertilize, wait until it is established and keep it light.

Timing your planting

In Florida, the most forgiving time to plant a tree is the cooler, wetter stretch from fall through early spring, when mild temperatures and natural rainfall ease the stress of establishment and let roots settle in before the punishing heat of summer arrives. Container-grown trees can still go in nearly year-round here, as long as you commit to attentive watering through the hot months.

If you must plant in summer, do it on an overcast morning, water faithfully, and keep a close eye on the tree through its first several weeks in the ground.

Watering tools that make it easier

Consistent watering is the make-or-break factor, and a few simple tools take the guesswork out of it. A slow-release watering bag wrapped around the trunk delivers a deep, gradual soak over hours, exactly what new roots want, while a cheap soil moisture meter, or even a finger pushed a few inches down, tells you whether the root ball is actually wet or just the surface.

Checking before you water prevents the most common new-tree killer of all: drowning a tree with daily sprinkles that never reach the roots.

What to expect the first year

Do not panic if a newly planted tree seems to sit still for a season. Most of its early energy goes underground into roots you cannot see, and visible top growth often lags for the first several months before taking off. A little leaf drop or slowed growth after transplanting is completely normal as the tree adjusts.

Give it steady water, protect the trunk, resist the urge to fertilize or prune heavily, and let the tree do its quiet underground work.

Let us help you start it right

A tree planted correctly is a tree you rarely have to think about again. If you would like a hand choosing or planting one, we are glad to help.

Pick out your tree at SmartyPlants, or have our installation team plant it for you.

Frequently asked questions