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Summary
Main Bloom Time: Early spring, Late spring, Mid spring. Form: Columnar, Pyramidal.
Physical Characteristics
Sequoiadendron giganteum is an evergreen Tree growing to 90 m (295ft) by 20 m (65ft) at a fast rate.
See above for USDA hardiness. It is hardy to UK zone 7. It is in leaf all year, in flower from March to April, and the seeds ripen all year. The species is monoecious (individual flowers are either male or female, but both sexes can be found on the same plant) and is pollinated by Wind.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil and can tolerate drought. The plant can tolerates strong winds but not maritime exposure.
UK Hardiness Map
US Hardiness Map
Synonyms
S. gigantea. S. wellingtonia. S. wellingtoniana. Wellingtonia gigantea. W. californica.
Plant Habitats
Woodland Garden Canopy;
Edible Uses
References More on Edible Uses
Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
None known
References More on Medicinal Uses
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Other Uses
Wood
Wood - coarse-grained, very light, soft, very durable, rather brittle. Used for shingle, construction, fence posts etc[11, 46, 61, 82, 229].
Special Uses
Scented Plants
References More on Other Uses
Cultivation details
Landscape Uses:Christmas tree, Firewood, Aggressive surface roots possible, Screen, Specimen. An easily cultivated, fast-growing tree[81], it prefers a deep rich soil and a sunny sheltered position[1, 11, 81]. Thrives in any soil, site or exposure[81] including a hot dry position. Tolerates light shade only when very young[200], older plants strongly dislike shade[11]. Does not thrive on shallow chalk[200]. Established plants are drought resistant[200]. Dislikes atmospheric pollution[200]. This species is the biggest (but not the tallest) tree in the world[81] and can weigh up to 2000 tonnes[185, 200]. It is also a very long-lived tree in the wild, specimens have been found that are 3500 years old[81]. Fairly fast growing in height in Britain, annual increases of 60cm for the first 50 years or more are common[185]. Increase in girth can be spectacular, 7 - 10cm a year being the average[185]. Trees appear to be long-lived in Britain[185]. Best planted into its permanent position when no more than 30 - 50 cm tall[200]. Trees are notably susceptible to honey fungus[81, 200]. The foliage is hard and harsh to the touch and readily emits a scent of aniseed[185]. Cones take 2 years to mature[82]. In its native habitat the cones are retained on the tree with viable seed for up to 30 years[185]. The cones open after the heat of a forest fire[200]. Special Features:
Attracts birds, North American native, Inconspicuous flowers or blooms.
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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Plant Propagation
Seed - sow early spring in a cold frame in light shade. Seed can also be sown as soon as it is ripe in a greenhouse. Germination rates are usually very low[11], two months cold stratification might help[113]. Prick out the seedlings into individual pots once they are large enough to handle and grow them on in a cold frame for their first winter, planting them out into their permanent positions in late spring or early summer. Plants will require some protection from cold and spring frosts for their first year or two outdoors[78]. If there are sufficient seeds, they can be sown in a lightly shaded outdoor bed in late March[78]. Grow them on for two years in the seed bed before planting them out into their permanent positions in late autumn or early spring.
Other Names
If available other names are mentioned here
Native Range
NORTHERN AMERICA: United States (California (c. (Placer Co. to Tulare Co.)))
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
(Lindley.)J.Buchholz.
Botanical References
1171200
Links / References
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