Giant Sequoia Plant Care
Sequoiadendron giganteum (Lindl.) J.Buchholz
Updated · Sources · How we source care data
Sequoiadendron giganteum is a species of coniferous tree, classified in the family Cupressaceae in the subfamily Sequoioideae. Giant sequoia specimens are the largest trees on Earth.
Every 14–21 days
Full sun
0–100°F
40–70%
At a glance
How do you care for Giant Sequoia?
Plant Giant Sequoia in full sun and water a young tree every 14–21 days until it is established. It tolerates temperatures of 0–100°F (-18–38°C).
Where Is the Giant Sequoia Native To?
What Is the Giant Sequoia?
Giant Sequoia (Sequoiadendron giganteum) belongs to the Cupressaceae family within the Sequoiadendron genus. Giant Sequoia is native to the groves on the western slopes of the Sierra Nevada mountain range of California. Giant Sequoia is also known as Sierra Redwood, Wellingtonia, Big Tree.
Giant Sequoia displays a tall, conical tree growth habit, reaching up to 300 ft tall with a spread of approximately 25 ft. Giant Sequoia produces small, inconspicuous cones.
Leaf size: approximately 1 inches.
How Often Should You Water a Giant Sequoia?
Water a young or newly planted Giant Sequoia every 14–21 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established trees mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 14–21 days
Until established; then in dry spells
What Light Does the Giant Sequoia Need?
Giant Sequoia thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Giant Sequoia Prefer?
Sequoiadendron giganteum tolerates temperatures of 0–100°F. Giant Sequoia prefers humidity levels of 40–70%.
Temperature
0–100°F
Humidity
40–70%
What Soil Mix Works Best for a Giant Sequoia?
Well-draining, acidic soil with good aeration. Good drainage is essential for Giant Sequoia to prevent waterlogging, which leads to root rot and fungal issues.
Where Should You Plant a Giant Sequoia?
Choose a spot with full sun and well-draining, acidic soil with good aeration. Avoid low spots where water collects after rain.
Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Far Apart Should You Plant a Giant Sequoia?
Giant Sequoia can spread to about 25 ft (7.6 m) and reach about 300 ft (91 m) tall. Space plants about 25 ft (7.6 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the tree spacing calculator.
How Do You Prune a Giant Sequoia?
Prune Giant Sequoia while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the tree in one year.
How Do You Care for a Giant Sequoia in Winter?
Water deeply in late autumn before the ground freezes — evergreens keep losing water through their needles all winter, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.
Young and container-grown trees need extra protection: roots in a pot freeze much more easily than roots in the ground.
How Do You Propagate a Giant Sequoia?
Giant Sequoia can be propagated through seeds, cuttings.
Is the Giant Sequoia Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Giant Sequoia, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Giant Sequoia?
Giant Sequoia is susceptible to spider mites, bagworms, cypress bark beetles. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
Keep exploring plants
Giant Sequoia is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Sequoiadendron genus — compare its care with other Sequoiadendron species on PlantoScan.
Sequoiadendron is part of the Cupressaceae plant family — browse all Cupressaceae genera and species.
Giant Sequoia thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Sequoiadendron giganteum (Lindl.) J.Buchholz, family Cupressaceae (first published in Amer. J. Bot. xxvi. 536. 1939) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Giant Sequoia, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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