The tallest known living tree on Earth is Hyperion, a coast redwood in Redwood National Park. It has been measured at about 380.8 feet, or 116.07 meters. That is roughly the height of a 35- to 38-story building, depending on floor-to-floor spacing.
Hyperion is not a public destination. The National Park Service keeps its exact location protected, and off-trail hiking to the tree is prohibited because visitor traffic damaged the surrounding habitat. That detail matters. The tallest trees on Earth do not survive because they are isolated trophies. They survive because the site around them works: deep compatible soils, fog and moisture, protected roots, stable drainage, and a surrounding forest that buffers wind and heat.
That is the useful lesson for homeowners and project owners. Whether we are working around a mature oak during an addition, replacing a driveway near a maple, or planning shade trees for a new home, the same rules show up at a smaller scale. Mature size, root protection, soil structure, utility clearance, drainage, and timing are what determine whether a tree becomes an asset or an expensive conflict.
What Is the Tallest Tree on Earth?
Hyperion is a Sequoia sempervirens, commonly called a coast redwood. It was discovered in 2006 by naturalists Chris Atkins and Michael Taylor in Redwood National Park in Northern California. Its reported height is about 380.8 feet.
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Coast redwoods are the tallest tree species on the planet. They grow in a narrow coastal range where cool temperatures, winter rain, summer fog, and deep alluvial soils give them a rare growth advantage. A coast redwood can live for more than 2,000 years, and the species is built for vertical growth: a straight trunk, decay-resistant heartwood, thick bark, and the ability to absorb moisture through foliage in foggy conditions.
For scale, a 380-foot tree is taller than a football field is long, including one end zone. If you stood Hyperion beside a typical two-story house, the roofline would barely register against the lower trunk. That kind of height also explains why the tree’s exact location is withheld. Foot traffic compacts soil, damages shallow roots, opens informal trails, and stresses the understory that helps regulate moisture around the tree.
Tallest Tree vs. Largest Tree: Hyperion Is Not General Sherman
People often mix up the tallest tree with the largest tree. They are different records.
Hyperion is the tallest known living tree by height. General Sherman, a giant sequoia in Sequoia National Park, is widely cited as the world’s largest tree by volume. Giant sequoias are massive, but they are not usually as tall as the tallest coast redwoods. Think of coast redwoods as skyscrapers and giant sequoias as heavy industrial structures: both are enormous, but they win different categories.
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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minute| Category | Leading Example | Approximate Record | Why It Matters |
|---|---|---|---|
| Tallest known living tree | Hyperion, coast redwood | About 380.8 ft | Best-known height record for a living tree |
| Largest tree by volume | General Sherman, giant sequoia | Largest single-stem tree by volume | Mass and trunk volume, not height |
| Tallest tree species | Coast redwood | Regularly exceeds 300 ft in old-growth stands | Best natural architecture for extreme height |
| Tallest flowering hardwood contender | Australian mountain ash | Known to exceed 300 ft | One of the tallest flowering plants |
| Tall eastern U.S. native species | Tulip tree | Can exceed 150 ft on ideal sites | More relevant to many U.S. landscapes than redwood |
| Practical residential shade trees | Oak, maple, elm, sycamore, tulip tree | Often 40-100+ ft at maturity | Requires planning for roots, canopy, utilities, and structures |
Worthy Contenders for the Tallest Tree Title
Hyperion gets the headline, but it is not the only tree in the conversation. Measurements change as trees grow, lose tops, or are remeasured with better methods. Wind, lightning, drought, fire, decay, and soil disturbance can all change a tree’s standing over time.
Other Coast Redwoods: Helios, Icarus, and More
Other named coast redwoods, including Helios and Icarus, are credible contenders because they belong to the same species and grow in the same kind of old-growth habitat. Several coast redwoods have been measured above 370 feet. At that level, a difference of a few feet is meaningful to record keepers but not especially meaningful to the practical lesson: the entire site is doing the work.
A tree that tall depends on root function, moisture, canopy health, and surrounding forest conditions. Remove the buffer, compact the soil, or alter drainage, and the tree’s long-term performance changes. We see the same principle on job sites with ordinary residential trees. A 70-foot oak may look untouched after grading, but if the root zone was driven over for three weeks, decline may show up two or three seasons later.
Australian Mountain Ash
Australian mountain ash, Eucalyptus regnans, is one of the tallest flowering plants on Earth and a legitimate height contender as a species. It can exceed 300 feet in the right conditions. It is not the same kind of tree as a coast redwood, and it grows in a different ecology, but it belongs in any serious discussion of extreme tree height.
Why Record Tree Locations Are Often Protected
Keeping record-tree locations quiet is not gatekeeping for the sake of it. The risks are practical: soil compaction, trampling, vandalism, illegal trails, root damage, trash, and erosion. A single visitor is not usually the problem. Hundreds or thousands of visitors following the same informal path are.
That same logic applies during construction. A tree protection fence that goes up after excavation has already started is late. On our job sites, we want tree protection planned before demolition, staging, material delivery, trenching, or grading. The root zone needs to be treated like a protected work area, not leftover open space.
Why Coast Redwoods Grow So Tall
Coast redwoods have a rare combination of biology and site conditions. The species grows in a coastal climate with winter rainfall, mild temperatures, and summer fog. Fog reduces water stress and can provide moisture directly to foliage. In the best sites, soils are deep and moisture-retentive without staying constantly waterlogged.
Their structure also helps. Coast redwoods grow straight, resist decay well, and can produce new growth from burls and dormant buds. Thick bark helps protect them from fire damage. In old-growth stands, surrounding trees reduce wind exposure, and the forest floor stores organic matter that supports moisture and soil life.
For a homeowner, the takeaway is not to plant a redwood in every yard. The takeaway is to match the tree to the site. A tree that wants deep, cool, moist soil will struggle in compacted fill beside a hot driveway. A tree that reaches 80 feet high and 50 feet wide does not belong 8 feet from a foundation, under service lines, or beside a narrow sidewalk unless the long-term conflicts have been deliberately designed around.
What Tall Trees Teach Homeowners Before Planting
Most tree problems start at selection and planting. A 6-foot nursery tree looks harmless. The mature version may be 60 feet tall, 40 feet wide, and rooted through the same zone where the homeowner later wants a patio, fence, sewer repair, or garage addition.
Before planting, look at the mature height and spread, not the container size. Check overhead wires, underground utilities, building setbacks, rooflines, gutters, solar panels, septic fields, water lines, sewer laterals, sidewalks, driveways, and drainage swales. Call 811 before digging so underground utilities are marked. For larger projects, put proposed tree locations on the site plan instead of treating landscaping as an afterthought.
Installed tree costs in the U.S. commonly run from about $150 to $1,500+ per tree in 2026. A small ornamental or young shade tree may be near the low end. A larger balled-and-burlapped tree, difficult backyard access, crane or machine handling, irrigation setup, soil correction, staking, delivery, and warranty can push the cost much higher. Nursery stock alone can range from under $100 to $300 for small container trees to several hundred or several thousand dollars for larger caliper trees before installation.
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Planting Details That Matter
The root flare should be visible at planting. Planting too deep is one of the most common mistakes we see, and it can lead to girdling roots, trunk decay, poor oxygen exchange, and long-term instability. The hole should generally be wider than the root ball, with the tree set on firm undisturbed soil so it does not settle too low.
Mulch should be wide, not deep. A broad 2- to 4-inch mulch ring helps moderate soil temperature and moisture, but mulch should be pulled away from the trunk. A mulch pile against bark holds moisture where the trunk needs to stay dry and can encourage decay and pests.
Stakes are not always needed. When they are needed, use flexible ties and remove them on schedule, often after the first growing season unless site conditions justify longer support. Over-staking prevents the trunk from developing strength and can scar bark if ties are left too long.
Large Trees and Construction: Where Conflicts Start
Large trees and construction can work together, but only when the tree is treated as part of the project constraints. The biggest conflicts usually involve roots, grade, drainage, utilities, and access.
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Grade changes are another problem. Adding fill over roots reduces oxygen exchange. Cutting grade can remove roots outright. Even a few inches of grade change can matter for sensitive mature trees. Heavy equipment, dumpsters, pallets, and stored lumber can compact soil under the canopy even when the trunk is never touched.
On projects with valuable mature trees, we recommend an ISA Certified Arborist before work starts. For additions, driveway replacement, drainage work, major grading, utility trenching, or removals, an arborist can identify species, condition, diameter at breast height, critical root zone, pruning needs, risk level, and permit implications. A basic consultation or risk assessment often starts around $100 to $300+. Formal written reports for permits, insurance, development review, or legal disputes can cost several hundred dollars to more than $1,000.
Job-Site Tree Protection Basics
Good protection starts with a tree survey and fencing. Temporary tree-protection fencing should be installed before demolition or grading. The protected area should stay free of equipment, fuel, washout, soil stockpiles, dumpsters, and materials. Where access must cross a root zone, use ground protection mats and keep traffic limited.
For sensitive root-zone work, air-spade or hydro-excavation can expose utilities or roots with less damage than open trenching. If roots must be cut, clean cuts and arborist guidance are better than tearing roots with a machine bucket. Pruning, trenching, and grading should follow recognized professional standards, including ANSI A300 tree-care standards and OSHA safety rules for tree work.
Pruning, Removal, and Stump Costs in 2026
Tree care costs vary because every tree is a different access, risk, and disposal problem. Height matters, but it is not the only driver. A 45-foot tree over a clear lawn may be simpler than a 28-foot tree leaning over a roof, fence, service line, and neighbor’s driveway.
| Service | Typical 2026 U.S. Range | What Drives the Price |
|---|---|---|
| Tree planting | $150-$1,500+ installed | Tree size, species, soil prep, delivery, access, staking, irrigation, warranty |
| Professional pruning | $250-$1,000+ per tree | Height, canopy spread, hazards, structures, wires, climber or bucket truck needs |
| Large or hazardous pruning | $1,500+ possible | Very large canopy, decay, storm damage, difficult rigging, limited access |
| Tree removal | $400-$2,500+ commonly | Size, health, lean, access, nearby structures, crane needs, disposal fees |
| Complex removal | $3,000-$5,000+ possible | Dead or storm-damaged trees, crane work, traffic control, tight urban sites |
| Stump grinding | $150-$500 commonly | Diameter, root flare, number of stumps, access, cleanup requirements |
| Arborist consultation | $100-$300+ basic visit | Tree count, risk assessment, written report, permit or insurance needs |
Pruning is usually cheaper and safer when defects are corrected early. Structural pruning on young trees can reduce weak branch unions, crossing limbs, and future clearance problems. Waiting until a tree is large means the work may require climbing, rigging, a bucket truck, traffic control, and more debris handling.
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Avoid topping mature trees to control height. Topping creates weak regrowth, opens decay pathways, and often makes the tree more hazardous over time. If a tree has outgrown its location, the real options are professional reduction pruning where appropriate, long-term monitoring, or removal and replacement with a better-sized species.
When to DIY vs. When to Hire a Pro
Homeowners can handle some tree work. Small planting, basic watering, mulching, and light pruning from the ground are reasonable DIY tasks when the work is clear and safe. A homeowner with sharp bypass pruners, loppers, a pruning saw, gloves, eye protection, and a stable working area can remove small dead twigs, correct minor crossing branches, and maintain young trees.
Hire a professional when the tree is large, near a structure, near power lines, on a slope, visibly decayed, storm-damaged, leaning, or too tall to prune from the ground. Tree work near power lines should be handled by the utility or qualified line-clearance professionals. It is not work for homeowners or general crews.
For construction projects, hire an ISA Certified Arborist when a mature tree may be affected by excavation, grading, compaction, drainage changes, or utility work. The cost of a consultation is small compared with emergency removal, hardscape replacement, delayed inspections, or a dead mature tree two years after the project is finished.
Permits, Utilities, and Safety Notes
Tree rules are local. Some cities regulate removals by species, trunk diameter, location, heritage status, slope, zoning district, or whether the tree is in a right-of-way. Permit requirements may include replacement trees, arborist reports, neighbor notice, or inspection before removal. Ignoring permits can lead to fines, stop-work orders, replacement requirements, and delayed construction schedules.
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Before planting or digging, call 811 and wait for utilities to be marked according to your state’s rules. Private lines such as irrigation, landscape lighting, pool lines, septic components, and some gas or electric runs may not be marked by standard utility locating, so they need separate attention.
During construction, tree protection should be included in the preconstruction meeting. Crews need to know where equipment can travel, where materials can be stored, where washout is allowed, and which areas are off limits. A sign on a fence is useful only if the work plan supports it.
How Far Should Large Trees Be From a House?
There is no single distance that fits every species, soil, and foundation type. A better rule is to plan from mature size and risk. A tree that matures at 70 feet tall with a 45-foot canopy needs more room than a 20-foot ornamental tree. For many large shade trees, homeowners should think in terms of 20 to 40 feet or more from the house when space allows, with more distance for very large species, aggressive roots, or expansive soils.
Foundation risk is not just roots pushing concrete. In many cases, the bigger issue is soil moisture change, drainage patterns, poor planting location, and roots exploiting existing cracks or utility trenches. Trees can also affect gutters, roofs, siding, sewer laterals, sidewalks, driveways, and visibility at driveways and corners.
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On tight lots, choose right-sized trees. A smaller shade tree placed correctly is usually better than a future conflict tree planted too close to the house. Good planning means fewer cracked hardscapes, fewer emergency removals, better stormwater management, lower summer heat, and smoother permitting when the property is improved later.
The Bottom Line
Hyperion is the tallest known living tree on Earth, but its real lesson is not about chasing a hidden location in a national park. The lesson is that great trees are built by great site conditions. Roots, soil, water, protection, and surrounding context matter.
For homeowners, that means choosing trees by mature size, protecting root zones before construction starts, pruning early, respecting utilities, and bringing in qualified professionals when the work involves height, risk, permits, or major site disturbance. A tree can be one of the best long-term improvements on a property, but only when it is planned like part of the built environment instead of decoration added at the end.
Frequently Asked Questions
What is the tallest tree on Earth in 2026?
The tallest known living tree is Hyperion, a coast redwood in Redwood National Park, measured at about 380.8 feet, or 116.07 meters.
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Can you visit the Hyperion tree?
No. Hyperion’s exact location is protected, and the National Park Service prohibits off-trail hiking to it because visitor traffic damaged the surrounding habitat.
Is the tallest tree the same as the largest tree?
No. Hyperion is the tallest known living tree by height. General Sherman, a giant sequoia in Sequoia National Park, is widely cited as the largest tree by volume.
How much does it cost to plant a large tree?
In 2026, professional tree planting in the U.S. commonly ranges from about $150 to $1,500+ installed. Large specimens, difficult access, soil preparation, irrigation, delivery, staking, and warranty coverage can raise the cost.
Do I need a permit to remove a tree on my property?
Possibly. Tree removal permits are local and may depend on species, trunk diameter, location, heritage status, zoning, slope, or right-of-way rules. Check before removal to avoid fines, stop-work orders, or replacement requirements.
How can construction crews protect mature trees during a project?
Start before demolition or grading. Use a tree survey, install protection fencing around the critical root zone, keep equipment and materials out of that area, avoid grade changes, and use an ISA Certified Arborist when trenching or excavation may affect roots.
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