The largest living thing on Earth. Grown from a seed smaller than an oat flake. Sequoiadendron giganteum, the Giant Sequoia, is the largest tree by volume on the planet and one of the most awe-inspiring organisms you can grow. From a seed no larger than an oat flake rises a tree capable of living for millennia and reaching staggering size. Native to California’s Sierra Nevada, it has proven surprisingly adaptable in cultivation, thriving well beyond its original range while maintaining the same massive presence and longevity. Largest tree by volume on Earth Cold-hardy beyond its native range, thriving in zones 6–9 Produces cones that can remain on the tree for decades Extremely long-lived, with some trees over 3,000 years old Thick, fire-resistant bark protects mature trees from damage Things You Probably Didn’t Know Fire helps it reproduce. In the wild, heat from fire helps open cones and prepares the soil for seedling establishment, making fire part of its natural lifecycle. It thrives far from California. Giant Sequoias have been successfully grown in Europe since the 1800s, with large specimens now established across the UK and beyond. The bark protects it for centuries. The thick, fibrous bark resists fire and damage, allowing mature trees to survive events that would destroy most other species. Some individuals predate recorded history. Many Giant Sequoias were already standing when ancient civilizations were just beginning, making them among the oldest living witnesses on Earth. Growing Details Botanical Name: Sequoiadendron giganteum Stratification: Recommended; 30 days cold stratification, surface sow (light required) USDA Zones: 6–9 Soil: Well-drained, moist, slightly acidic Light: Full sun Height: 100–200 feet in cultivation Spread: 25–35 feet Growth Rate: Moderate (1–2 ft/year when young) Plant it with full knowledge of what it will become. You are starting something that will still be here long after everything else you built is gone.
