
The redwoods, specifically the coast redwoods (*Sequoia sempervirens*), are among the tallest and most majestic trees on Earth, with some individuals soaring to heights exceeding 350 feet (107 meters), rivaling the length of a football field. These ancient giants, primarily found in the fog-shrouded forests of Northern California, are not only impressive in stature but also in age, with the oldest known specimens living for over 2,000 years. Their massive trunks, which can reach diameters of up to 20 feet (6 meters), house resilient, fire-resistant bark that has allowed them to endure centuries of environmental challenges. The combination of their towering height, immense girth, and extraordinary longevity makes the redwoods a testament to nature’s enduring power and a subject of awe and scientific fascination.
| Characteristics | Values |
|---|---|
| Height | Up to 379.3 feet (115.6 meters) (tallest known: Hyperion tree) |
| Diameter | Up to 24 feet (7.3 meters) at the base |
| Circumference | Up to 100 feet (30.5 meters) at the base |
| Age | Up to 2,000–2,500 years (oldest known: over 2,200 years) |
| Bark Thickness | Up to 12 inches (30 cm), providing fire resistance |
| Volume | Up to 50,000 cubic feet (1,416 cubic meters) |
| Species | Coast Redwood (Sequoia sempervirens) |
| Location | Coastal Northern California and Southern Oregon, USA |
| Lifespan | Can live for millennia under ideal conditions |
| Growth Rate | Up to 3 feet (0.9 meters) per year in height |
| Seedling Height | Typically 6–12 inches (15–30 cm) in the first year |
| Root Depth | Shallow roots, typically 6–12 feet (1.8–3.7 meters) deep |
| Fire Resistance | Highly resistant due to thick bark and ability to sprout after damage |
| Ecosystem Role | Provides habitat for diverse species, including marbled murrelets |
| Conservation Status | Vulnerable due to logging and climate change |
What You'll Learn
- Height and Diameter: Redwoods can reach 380 feet tall, 24 feet in diameter
- Age of Redwoods: Some redwoods are over 2,000 years old, among Earth’s oldest trees
- Growth Rate: Redwoods grow rapidly, up to 3 feet per year in ideal conditions
- Size Comparison: Redwoods are taller than the Statue of Liberty, which is 305 feet
- Oldest Known Redwood: The oldest redwood is over 2,200 years old, still growing today

Height and Diameter: Redwoods can reach 380 feet tall, 24 feet in diameter
Redwoods, scientifically known as *Sequoia sempervirens*, are among the most awe-inspiring trees on Earth, primarily due to their staggering height and girth. At their peak, these giants can soar to 380 feet—taller than a 30-story building—making them the tallest living organisms on the planet. Equally impressive is their diameter, which can reach 24 feet at the base, creating a trunk so wide that it would take three adults holding hands to encircle it. These dimensions are not just numbers; they represent a biological marvel that has evolved over millennia to dominate the forest canopy and withstand the test of time.
To put their height into perspective, imagine standing at the base of a redwood and looking up. The tree’s crown would be nearly as high as the Statue of Liberty, including its pedestal. This vertical dominance is a survival strategy, allowing redwoods to capture maximum sunlight in dense forests. Their diameter, on the other hand, is a testament to their resilience. A 24-foot-wide trunk provides structural stability, enabling these trees to endure strong winds, heavy snowfall, and even wildfires. Together, these dimensions create a silhouette that is both majestic and functional, a perfect example of nature’s engineering.
For those interested in measuring or appreciating redwoods, here’s a practical tip: use a clinometer to estimate their height by calculating the angle of elevation from a distance. To gauge diameter, measure the circumference at breast height (4.5 feet above the ground) and divide by pi (3.14). These simple tools and techniques can deepen your connection to these giants and highlight their extraordinary scale. Whether you’re a hiker, a scientist, or a casual observer, understanding these measurements adds a layer of wonder to the redwood experience.
Comparatively, redwoods dwarf other tree species. For instance, the tallest eastern white pine reaches about 200 feet, while the widest baobab tree in Africa measures around 154 feet in circumference. Redwoods outclass both in height and diameter, yet they thrive in a relatively narrow geographic range along the California coast. This uniqueness underscores their ecological significance and the importance of preserving their habitat. Their size is not just a curiosity—it’s a critical adaptation that supports entire ecosystems, from soil microorganisms to canopy-dwelling birds.
Finally, consider the implications of these dimensions for conservation. A tree that grows to 380 feet tall and 24 feet wide requires centuries to mature, with some redwoods living over 2,000 years. Their size is a product of time, climate, and genetic resilience, making them irreplaceable. As climate change and logging threaten their habitats, protecting these giants becomes not just an environmental priority but a moral imperative. Their height and diameter are more than measurements—they are symbols of nature’s grandeur and our responsibility to safeguard it.
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Age of Redwoods: Some redwoods are over 2,000 years old, among Earth’s oldest trees
The coastal redwoods (Sequoia sempervirens) stand as living monuments to time, with some individuals surpassing 2,000 years in age. To put this into perspective, a redwood that sprouted during the height of the Roman Empire could still be alive today, its trunk towering over the California landscape. These ancient giants are not merely old; they are among the oldest living organisms on Earth, rivaling even the Great Basin bristlecone pines in longevity. Their age is a testament to their resilience, having survived millennia of environmental changes, from shifting climates to human encroachment.
Understanding the age of redwoods requires more than a simple count of growth rings. Unlike most trees, redwoods often grow in humid, foggy environments that can lead to irregular ring formation. Dendrochronologists—scientists who study tree rings—use advanced techniques, such as cross-referencing with nearby trees and carbon dating, to accurately determine their age. For instance, the Grove of Ancients in Redwood National Park houses trees estimated to be over 2,500 years old, their ages confirmed through meticulous scientific analysis. These methods not only reveal the trees’ age but also provide insights into historical climate patterns.
The longevity of redwoods is closely tied to their unique biology. Their thick, tannin-rich bark acts as a natural fire retardant, protecting them from wildfires that would decimate other species. Additionally, their ability to sprout new trunks from stumps or roots allows them to regenerate after damage. This adaptability, combined with their slow but steady growth rate, enables them to thrive for centuries. However, their age also makes them vulnerable; older trees are more susceptible to diseases, windthrow, and human activities like logging.
Preserving these ancient giants is not just an ecological imperative but a moral one. Redwoods sequester massive amounts of carbon, playing a crucial role in mitigating climate change. Their old-growth forests provide habitat for endangered species like the northern spotted owl and marbled murrelet. To protect them, conservation efforts must focus on sustainable forestry practices, habitat restoration, and public education. For example, organizations like Save the Redwoods League work to acquire and protect redwood lands, ensuring these trees continue to stand for millennia to come.
In a world where time often feels accelerated, the redwoods offer a rare connection to the past. Standing beneath their canopy, one can’t help but feel a sense of awe at the passage of centuries they’ve witnessed. Their age is not just a number but a story—a story of survival, adaptation, and endurance. By safeguarding these ancient trees, we preserve not only a piece of natural history but also a symbol of resilience for future generations.
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Growth Rate: Redwoods grow rapidly, up to 3 feet per year in ideal conditions
Redwoods, the towering giants of the forest, are not just marvels of size but also of speed. Their growth rate is astonishing, reaching up to 3 feet per year under ideal conditions. This rapid vertical expansion is a testament to their evolutionary adaptation to the lush, fog-drenched ecosystems of the Pacific Northwest. For comparison, most tree species grow at a fraction of this pace, making redwoods a unique case study in botanical efficiency. Understanding this growth rate offers insights into their ability to dominate their environment and achieve heights that few other organisms can rival.
To maximize a redwood’s growth potential, specific conditions must be met. These trees thrive in cool, coastal climates with consistent moisture, often derived from fog drip. Soil quality is equally critical; deep, well-draining loam rich in organic matter provides the nutrients necessary for rapid growth. Young redwoods, particularly those under 20 years old, benefit from partial shade, which protects them from harsh sunlight while allowing enough light for photosynthesis. Gardeners or conservationists aiming to cultivate redwoods should mimic these conditions, ensuring a steady water supply and protecting saplings from extreme temperatures.
The growth rate of redwoods is not just a biological curiosity but a practical consideration for conservation efforts. Their ability to sequester carbon at a faster rate than slower-growing trees makes them invaluable in combating climate change. A single mature redwood can store up to 1,000 tons of carbon dioxide, a capacity directly tied to its rapid growth. By preserving and expanding redwood forests, we can enhance their role as carbon sinks, contributing to global environmental health. This underscores the importance of protecting their habitats from logging and urban encroachment.
Despite their impressive growth rate, redwoods face challenges that can hinder their development. Drought, a growing concern in California due to climate change, can stunt their growth and weaken their defenses against pests and diseases. Additionally, competition from invasive species for resources can slow their ascent. Conservation strategies must address these threats, including controlled burns to reduce underbrush and irrigation systems to mitigate drought effects. By safeguarding their growth, we ensure that redwoods continue to flourish for centuries to come, maintaining their status as both ecological and symbolic giants.
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Size Comparison: Redwoods are taller than the Statue of Liberty, which is 305 feet
Redwoods, the towering giants of the forest, defy imagination with their sheer height. To put it into perspective, consider the Statue of Liberty, a symbol of freedom and a marvel of engineering, standing at 305 feet from the base of the pedestal to the tip of the torch. Even this iconic monument pales in comparison to the tallest redwoods, which can exceed 350 feet. Imagine standing at the base of a tree that stretches higher than one of the most recognizable structures in the world—a living organism that has grown to such monumental proportions.
To visualize this size comparison, picture the Statue of Liberty placed beside a mature redwood. The statue’s copper torch, held high at 305 feet, would be dwarfed by the tree’s crown, which continues upward for another 50 feet or more. This comparison isn’t just about height; it’s about scale and the awe-inspiring presence of these ancient trees. While the statue took years of human craftsmanship to complete, redwoods achieve their towering stature through centuries of slow, steady growth, fueled by the unique climate of their coastal habitats.
For those planning to visit a redwood forest, this size comparison offers a practical tip: bring a wide-angle lens or prepare to take panoramic photos, as capturing the full height of these trees in a single frame is nearly impossible. Stand at the base of a redwood and look up—you’ll feel a sense of vertigo as the trunk disappears into the canopy, far above the height of any man-made structure you’re accustomed to. This experience underscores the humility and wonder that come from encountering something so vast and ancient.
Finally, consider the age of these giants alongside their height. While the Statue of Liberty is just over a century old, redwoods can live for 2,000 years or more. Their height is a testament to their longevity, resilience, and the unique conditions that allow them to thrive. This size comparison isn’t just a fun fact—it’s a reminder of the extraordinary scale of nature and the importance of preserving these living monuments for future generations.
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Oldest Known Redwood: The oldest redwood is over 2,200 years old, still growing today
Standing silently in the misty forests of California, the oldest known redwood has witnessed over 2,200 years of history. This ancient giant, still growing today, defies time itself. Its age isn't just a number—it's a testament to resilience, survival, and the slow, steady march of nature. Imagine the world it has endured: the rise and fall of civilizations, the shifting climates, and the countless generations of humans who have walked beneath its canopy.
To put this age into perspective, this redwood sprouted around 200 BCE, during the height of the Roman Republic. While empires crumbled and technologies evolved, it remained rooted in the same soil, drawing strength from the earth and air. Its longevity is a result of its unique biology: redwoods are remarkably resistant to disease, fire, and decay, thanks to their thick, tannin-rich bark and shallow but extensive root systems. These adaptations allow them to thrive where other species might falter.
For those seeking to appreciate or even visit this natural wonder, practical considerations are key. The exact location of the oldest redwood is kept confidential to protect it from damage, but its general habitat—the temperate rainforests of Northern California—is accessible. When exploring these forests, tread lightly; stay on designated trails, avoid touching the trees, and carry out all waste. Remember, these ecosystems are fragile, and human impact can disrupt centuries of growth.
Finally, the oldest redwood serves as a powerful reminder of the value of preservation. Its continued growth is a call to action: to protect old-growth forests, reduce deforestation, and combat climate change. By safeguarding these ancient giants, we ensure that future generations can marvel at their majesty and learn from their enduring presence. This tree isn’t just a relic of the past—it’s a living bridge to the future.
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Frequently asked questions
The tallest redwoods, specifically the coast redwoods (*Sequoia sempervirens*), can grow up to 380 feet (115 meters) in height, with the current tallest tree, Hyperion, measuring 379.7 feet (115.7 meters).
The trunk diameter of a mature redwood can reach up to 20-26 feet (6-8 meters) in width, making them among the most massive trees on Earth.
Redwoods are among the longest-living organisms on the planet, with some coast redwoods living over 2,000 years. The oldest known redwood is estimated to be around 2,200 years old.
No, redwoods vary in size and age. While some are towering giants over 1,000 years old, others are younger and smaller, depending on factors like location, soil, and climate.
Redwoods are the tallest trees in the world, surpassing other tall species like the giant sequoia (*Sequoiadendron giganteum*), which are bulkier but shorter, and the eucalyptus, which can reach heights of up to 330 feet (100 meters) but are generally not as tall as redwoods.

