The short answer

Transplanting a tree successfully comes down to seven things, in order: pick the right tree, time it for dormancy, prepare the new site first, preserve enough rootball, match your equipment to the tree size, plant at the correct depth, and commit to first-year aftercare. Healthy mature trees with a properly sized rootball, planted during late winter or early spring (or after leaf drop in late fall), with consistent watering and 2 to 4 inches of mulch through the first growing season, have very high survival rates. Skip any of those seven and survival drops fast.

Should you do this yourself or call a pro?

The answer depends on caliper. Use this as your decision tree:

Tree size (caliper)	Recommended approach	Why
Up to 1″	DIY with a shovel	Rootball is small enough (≤12″) and light enough to handle by hand.
1″ to 2″	DIY with care, or skid-steer spade	Rootball ~20 to 24″ at minimum (per ANSI Z60.1). One person can do it with two strong helpers and a wheelbarrow, or a Big John Model 20 / Model 28 spade.
2″ to 4″	Hire a pro with a skid-steer or trailer-mounted spade	Rootball 20 to 48″ wide and 300 to 1,500 lb. Beyond hand-tool range; tree spade is faster and produces a cleaner cut.
4″ to 10″	Hire a pro with a truck-mounted or large loader-mounted spade	Rootball 40 to 100″ wide and 1,500 to 11,800 lb. Requires hydraulic spade and a carrier rated to lift the rootball.
10″+	Specialist contractor with a 90D, 100D, or equivalent	Rootball 100″+ and rootball weight up to 18,000 lb. Specialty work; relatively few operators in any given region can handle it.

Caliper is measured at 6 inches above ground for trunks up to 4 inches, and 12 inches above ground for trunks larger than 4 inches (per ANSI Z60.1). Use our tree caliper to rootball size calculator to size the rootball for your specific tree.

The rest of this guide assumes you’re moving a tree large enough to need professional equipment, or you want to understand the full process whether or not you’ll do the work yourself.

Step 1: Pick a tree that will survive the move

Not every tree should be transplanted. The ones that survive share four characteristics:

• Vigorous growth. Healthy leader, full canopy, normal annual growth rings on visible cuts.
• No dead or broken branches. Significant deadwood signals existing stress; transplant shock layered on top is often fatal.
• Healthy foliage. Green, full, and the right color for the species. Off-color leaves point to an existing soil, water, or pest problem the move won’t fix.
• No disease or pest infestation. Visible cankers, oozing wounds, large insect damage, or fungal fruiting bodies are stop signals. Move a healthy tree, not a problem tree.

Species matters too. Some trees transplant well at large sizes: oaks, maples, lindens, sycamores, hornbeams. Others struggle even at moderate sizes: birches, dogwoods, magnolias, beeches, and most conifers larger than 6-inch caliper. Check the species before you commit equipment.

Step 2: Time the move for dormancy

The single most important calendar decision is to move trees while they’re dormant. Sap is down, the tree isn’t actively pushing leaves or flowers, and the energy demand on the damaged root system is at its annual minimum.

The two dormancy windows in temperate North America are:

• Late winter through early spring, before bud break. This is the most reliable window in most US climates.
• Late fall after leaf drop, while the soil is still workable. Works well for species that don’t put on much fall root growth and in regions with mild winters.

Move trees in summer only when you have to, and accept that survival rates drop significantly even with attentive aftercare. Heat stress on a tree that’s already lost root mass is a hard combination to recover from.

Step 3: Prepare the new site first

The receiving hole and the new site need to be ready before the tree comes out of the ground. A rootball that sits exposed loses moisture fast, and roots can’t tolerate long delays. Pre-stage everything.

Site selection criteria

• Soil: most trees prefer slightly acidic to neutral soil with good drainage. Standing water suffocates roots. Avoid compacted or heavily disturbed soil unless you can amend it.
• Sunlight: match the species (full sun, partial shade, full shade). Most landscape trees want at least 6 hours of direct sun.
• Water access: the tree will need supplemental water for the entire first growing season, often longer. Make sure you can get a hose to the new location.
• Space for roots and canopy: account for the mature size of the tree, not the size it is today. Plant a future 60-foot oak with the next 60 years in mind.
• Climate match: verify the species’ USDA Hardiness Zone matches the planting location.
• Clearance: at least 10 feet from buildings, well clear of power lines, and known clear of underground utilities (call before you dig).

Prepare the receiving hole

Dig the receiving hole the same diameter as the rootball, or slightly larger (10 to 15%), and the same depth as the rootball, not deeper. The most common transplant mistake is digging too deep, which sets the tree below grade and rots the trunk flare. The rootball should rest on undisturbed soil at the bottom of the hole, not on backfill that will compact and settle.

Loosen the soil on the sides of the hole. Mix organic matter into the backfill if your native soil is poor, but don’t overdo it. The roots need to grow out into native soil eventually; if the backfill is dramatically richer than the surrounding ground, the roots will circle inside the hole instead of extending.

Step 4: Prepare the tree

The day before or the morning of the move:

• Water the tree deeply. A well-hydrated rootball holds together better during the cut and lift, and the tree starts the move with full reserves.
• Tie up the lower branches with soft tree wrap or burlap strips. This protects branches from the spade and from each other during transport.
• Identify the north side with a chalk mark or tag if you want to replant the tree in the same orientation. Reorienting causes mild stress; some species mind, most don’t.
• Photograph the canopy. Useful for identifying any minor branch damage that occurs during the move.

For larger trees moved by professionals, root pruning several months in advance is sometimes recommended. Cutting roots at the eventual rootball perimeter encourages finer feeder roots inside the rootball. This is most useful for trees outside their normal transplant size range. For standard tree spade work on healthy stock, it’s optional.

Step 5: Match your equipment to the tree size

Equipment selection is where most amateur transplant failures happen. The rootball has to be big enough to keep enough live roots to support the canopy, and the spade has to be big enough to dig that rootball cleanly.

The industry-standard rootball minimum (per ANSI Z60.1) is 10 to 12 inches of rootball diameter for every 1 inch of trunk caliper. So:

• 3″ caliper means 30 to 36″ rootball, fits Big John Model 36 or Model 44 (skid-steer)
• 4″ caliper means 40 to 48″ rootball, fits Big John Model 48 or 55D
• 6″ caliper means 60 to 72″ rootball, fits Big John 65D or 80D
• 10″ caliper means 100 to 120″ rootball, fits Big John 90D or 100D

For carrier match, check the tree spade buying guide. For an interactive sizing tool, use the tree caliper to rootball calculator.

Why a tree spade beats hand digging at scale

Hand-dug, balled-and-burlapped (B&B) rootballs are the traditional method and still appropriate for trees up to about 2-inch caliper. Above that, tree spades win on three measurable axes:

• Speed: a single tree spade can dig, transport, and replant in the time it takes a crew to hand-dig one B&B rootball.
• Survival: tree spades cause less root disturbance than hand-digging because the cut is mechanical, fast, and clean. Less damage means less transplant shock and higher survival rates.
• Tree size: hand-dug B&B tops out around 4-inch caliper before the rootball weight (1,500 lb+) becomes impractical to handle. Tree spades scale to 14-inch caliper.

For more, see tree spade vs traditional methods.

Step 6: Dig and lift the rootball

With a tree spade, the basic sequence is:

1. Position the spade. Center it on the tree, with the gate on the side that faces away from your transport direction.
2. Engage the water system if equipped. Big John spades include an onboard water system that lubricates the blades, which makes the cut easier and reduces edge wear in dry or compacted soil.
3. Drive the blades sequentially. Each blade is hydraulically driven into the soil at the spade’s design angle (22°, 25°, or 30° depending on the unit). Cut all the way to depth before lifting.
4. Lift the rootball. Once all blades are seated, lift the spade and the rootball comes with it, contained inside the blade cone.
5. Engage the hydraulic transport lock. Big John spades have a hydraulic transport lock that prevents unwanted movement during transit. Engage it before driving.

For hand-dug B&B work, the basic sequence is the same conceptually. Dig a circular trench at the rootball perimeter, undercut the rootball, wrap it in burlap and twine, and lift. But everything is done with shovels and crew labor instead of hydraulics. Slower, more variable in quality, and harder on backs.

Step 7: Transport the tree

For tree spade transplants on a single site, the spade’s own carrier (truck, loader, or trailer) is the transport. For longer moves, the tree may need to be transferred to a tree pod or a flatbed trailer, with the rootball secured and the canopy protected.

Two practical rules:

• Keep the move short. Every minute the rootball is exposed and the leaves are airflow-stressed costs survival points. Shade the tree if you can.
• Re-water on arrival. If the move took more than an hour, a quick top-up before replanting helps.

For multi-tree relocation jobs, transport-only equipment matters. Tree pods and pod trailers (Big John publishes a dedicated product line) let you stage multiple trees simultaneously, which dramatically improves productivity on commercial relocation projects.

Step 8: Replant

Three things have to be right at replant:

1. Depth. Plant the tree at the same depth it was originally growing. The trunk flare should be at or just above grade. Too deep is a slow killer.
2. Orientation. If you marked the north side, line it back up. Optional, but cleaner for the tree’s adjustment.
3. Soil contact. Backfill in stages, packing soil firmly around the rootball to eliminate air pockets. Air pockets dry roots out fast.

With a tree spade, the spade’s own jaws plant the rootball directly into the receiving hole, which makes this step fast and uniform. With hand-dug B&B, the burlap stays on (it decomposes), but cut and remove any twine that wraps the trunk so it doesn’t girdle the tree as it grows.

Water deeply immediately after replanting. The first watering settles the backfill and seals the soil-to-rootball contact.

Step 9: First-year aftercare

Most transplant failures happen in the first year, and most of those are aftercare failures, not equipment failures. Commit to a year of attention before you transplant the tree, not after.

Watering

Keep the soil consistently damp but not waterlogged. The rule that works in most climates is a deep soak once or twice a week, weather depending, far more effective than daily light sprinkles. A slow trickle from a hose at the base of the trunk for 15 to 30 minutes is better than 5 minutes of broadcast spray. In hot dry weather, increase frequency. In cool wet weather, back off and avoid waterlogging.

Mulching

Apply a 2 to 4 inch layer of organic mulch (wood chips or shredded bark) around the base of the tree, extending out to the rootball perimeter or beyond. Keep the mulch 3 to 4 inches away from the trunk itself. A “donut,” not a “volcano.” Mulch volcanoes trap moisture against the trunk and rot the bark.

Staking

Stake the tree only if it needs support, including windy sites, top-heavy canopies, or trees that aren’t yet stable in the rootball. Use soft, wide ties (not wire-in-hose), and remove the stakes after one growing season. Trees that stay staked too long develop weaker trunks because they don’t get the wind movement they need to grow strong.

Fertilization

Don’t fertilize for the first month after transplanting. The tree is rebuilding root tips and doesn’t need a nitrogen push that will force top growth before the roots can support it. Once the tree shows clear new growth (typically a few weeks to a couple months in) apply a slow-release fertilizer at the manufacturer’s recommended rate.

Pruning

Remove any branches damaged during the move. Otherwise, leave the canopy alone the first season. The tree needs all the leaves it has to rebuild the root system. Major shaping or structural pruning waits until the next dormant season.

Watch for transplant shock

Mild transplant shock is normal: a slight wilting in heat, smaller leaves, slower growth than a non-transplanted equivalent. Severe shock looks like full leaf drop, branch dieback, or no leaf-out at all in spring. Severe shock means the tree is in trouble; respond with shade cloth in heat, anti-transpirants if leaves are still present, and patience.

Common mistakes to avoid

• Undersized rootball. Cutting a smaller rootball “to save effort” is the most common cause of transplant failure. The 10× to 12× caliper rule exists for a reason.
• Planting too deep. Roots need oxygen at the upper root zone. Burying the trunk flare is a slow death.
• Mulch volcano. Piling mulch against the trunk rots the bark over time.
• Inadequate first-year watering. Skipping a single dry month in the first growing season can kill a successfully transplanted tree.
• Wrong season. Mid-summer transplants on heat-stressed sites have much lower survival than dormant-season moves.
• Mismatched equipment. Trying to hand-dig a 6-inch caliper tree, or using an undersized spade, produces a poor rootball and high failure rates.
• Ignoring species suitability. Some species don’t transplant well at large sizes. A magnolia at 6-inch caliper is a much harder move than an oak at the same caliper.
• No follow-up. The tree needs attention through at least the first full growing season. Walking away after replanting is one of the top mistakes our service team sees.

For more on common challenges, see common tree transplanting challenges.

When to call a professional

Call a professional with a tree spade if any of the following apply:

• Caliper over 4 inches.
• Rootball weight that exceeds your lifting equipment’s capacity.
• Tight site access where rigging or directional placement is needed.
• High-value or irreplaceable specimen tree where survival matters more than cost.
• Insurance, permitting, or municipal requirements that mandate licensed work.

Big John Manufacturing equipment is in the field with thousands of professional operators across the United States and globally. If you need to find a contractor with a Big John, our tree transplanting services page is a starting point.

Frequently asked questions

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

Late winter through early spring (before bud break) is the most reliable window in most US climates. Late fall after leaf drop is the second-best option. Avoid summer transplants except when necessary; heat stress on a tree with reduced roots is a hard combination to recover from.

How big a rootball do I need?

Per ANSI Z60.1, the rootball diameter should be at least 10 to 12 inches for every inch of trunk caliper. A 3-inch caliper tree needs a 30 to 36-inch rootball; a 6-inch caliper tree needs 60 to 72 inches; a 10-inch caliper tree needs 100 to 120 inches. Use the caliper to rootball calculator for your specific tree.

Can I transplant a tree without a tree spade?

For trees up to about 2-inch caliper, yes. Hand-dug balled and burlapped (B&B) is appropriate. Above 2-inch caliper, a tree spade is faster, produces a cleaner rootball, and yields higher survival rates. Above 4-inch caliper, hand-dug B&B is impractical because the rootball weight exceeds what crews can safely lift.

How long does a transplanted tree take to recover?

Most healthy trees show normal growth by the second growing season after transplant. Full establishment (when the tree is no longer dependent on supplemental watering) typically takes 2 to 3 years for a 4-inch caliper tree, longer for larger trees. The rule of thumb is one year of recovery per inch of caliper.

What is transplant shock?

Transplant shock is the stress response a tree shows after losing root mass during the move. Mild shock (slight wilting, smaller leaves, slower growth) is normal. Severe shock (full leaf drop, branch dieback, no leaf-out in spring) means the tree is in trouble. Most shock symptoms ease over the first growing season with proper watering and aftercare.

How much does professional tree transplanting cost?

Cost varies widely by tree size, distance, site access, and species. Skid-steer-class moves of 2 to 4 inch caliper trees often run several hundred to a few thousand dollars. Truck-mounted moves of 6 to 10 inch caliper trees commonly run several thousand to mid-five-figures depending on logistics. Specialty moves of 12-inch and larger trees can clear $20,000.

Should I prune a tree before transplanting?

Tie up the lower branches to protect them during the move. Don’t do major pruning before transplant. The tree needs every leaf it has to support root regrowth. Save structural pruning for the next dormant season.

Why did my transplanted tree die?

The most common causes, in order: undersized rootball, planting too deep, inadequate first-year watering, wrong-season transplant (especially mid-summer on stressed sites), and species that don’t transplant well at the size attempted. Most failures trace to one of these, not equipment failure.

Get professional help with your tree transplant

Tree transplanting is one of those jobs where the difference between a 95% survival rate and a 50% survival rate comes down to equipment, technique, and follow-through. If you’re moving trees larger than 4-inch caliper, or any tree where survival genuinely matters, the right move is to bring in equipment and operators who do this work daily.

Big John Manufacturing builds the spades that thousands of professional tree-moving operators run. Whether you’re an end customer looking for a contractor or a contractor looking to add tree-moving capacity to your business, we can help.

Talk to Big John about your project

Or start by sizing the equipment with our tree caliper to rootball size calculator.