Mammuttipetäjä (siemenet) - Sequoiadendron giganteum

Giant redwood seeds or Sequoiadendron giganteum allow you to grow this tree, famous for its size and exceptional longevity. This imposing conifer, native to the western slopes of the Sierra Nevada in California, is prized for its majestic pyramidal habit and thick, fibrous reddish-brown bark. Over the decades, its massive trunk broadens and its slightly trailing branches rise in a graceful curve. Growing this giant requires considerable space, as it will flourish over several generations.

Sequoiadendron giganteum belongs to the Cupressaceae family and originates from the damp forests of the Sierra Nevada. In its natural habitat, it can reach 50 to 85 metres in height with a spread of 8 to 10 metres. Its fairly rapid growth is encouraged by cool, wet climates with hot summers and snowy winters. The habit is initially narrowly conical, then broadens with age. Slightly trailing main branches bear short, triangular needles (1 to 1.2 cm); young twigs bear smaller needles (0.3 to 0.6 cm). This monoecious species produces distinct male and female cones; reddish-brown female cones ripen over two years. The trunk is distinguished by its thick reddish bark, renowned for its resistance to fire and fungal diseases, developing deep fissures with age. Its shallow but very extensive root system enables efficient water and nutrient absorption but makes transplanting delicate and the tree vulnerable to strong winds in loose soils.

Sequoiadendron giganteum requires a large, carefully chosen space. Ideal as a specimen tree, it pairs well with a curtain of Phyllostachys bambusoides and complements mineral features such as rocks or masonry structures. It prefers deep, well-drained, rather cool soil in a sunny to partially shaded position, protected from strong winds. Once established, it requires little care.