Chamaecyparis lawsoniana Lawson Cypress, Port orford cedar, Oregon Cedar, Port Orford Cedar, Lawson’s Cypress PFAF Plant Database

Chamaecyparis lawsoniana Lawson Cypress, Port orford cedar, Oregon Cedar, Port Orford Cedar, Lawson

Chamaecyparis lawsoniana Lawson Cypress, Port orford cedar, Oregon Cedar, Port Orford Cedar, Lawson

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Bloom Colour: Blue, Purple. Kind: Columnar, Oval, Pyramidal, Upright or erect.

Bodily Traits

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Chamaecyparis lawsoniana is an evergreen Tree rising to 25 m (82ft) by four m (13ft) at a medium price.
It’s hardy to zone (UK) 6. It’s in leaf all yr, in flower from March to April, and the seeds ripen from September to October. The species is monoecious (particular person flowers are both male or feminine, however each sexes could be discovered on the identical plant) and is pollinated by Wind.
It’s famous for attracting wildlife.
Appropriate for: mild (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and might develop in heavy clay soil. Appropriate pH: acid, impartial and fundamental (alkaline) soils and might develop in very alkaline soils.
It will possibly develop in semi-shade (mild woodland) or no shade. It prefers dry or moist soil and might tolerate drought. The plant can tolerates sturdy winds however not maritime publicity.
It will possibly tolerate atmospheric air pollution.

UK Hardiness Map
US Hardiness Map


Cupressus lawsoniana.


Woodland Backyard Cover; Floor Cowl; Hedge;

Edible Makes use of


Medicinal Makes use of

Vegetation For A Future cannot take any accountability for any opposed results from using vegetation. At all times search recommendation from an expert earlier than utilizing a plant medicinally.

The resin is a robust diuretic[46, 61, 82].


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Different Makes use of

Broom  Hedge  Hedge  Resin  Wooden

Vegetation could be grown as a tall hedge[29, 75, 200] They’re very tolerant of clipping as long as this doesn’t prolong into the brown barked wooden since timber can’t regenerate from this[200]. Any trimming must be accomplished in the summertime[200]. Sure dwarf kinds can be utilized for floor cowl, the cultivars ‘Knowefieldensis’, ‘Nidiformis’ and ‘Tamariscifolia’ have been beneficial[208]. The branches have been used to make brooms[257]. Wooden – very close-grained, onerous, sturdy, sturdy, simply labored, mild, abounding in aromatic resin, acid resistant. One of many world’s best timbers, it’s broadly used for flooring, fencing, making boats and so forth[46, 61, 82, 171]. It’s now briefly provide as a result of over-harvesting with out replanting[200].

Particular Makes use of

Attracts Wildlife  Meals Forest  Floor cowl  Hedge  Hedge  Scented Vegetation


Cultivation particulars

Panorama Makes use of:Hedge, Display screen, Specimen. Succeeds in most soils and conditions, however prefers a moist deep loamy soil and a sheltered place[1, 11]. Grows nicely in heavy clay soils. Survives on dry alkaline soils[200]. Progress of timber is hardly affected by a scarcity of phosphate within the soil. Vegetation are reasonably shade tolerant, particularly when younger[81, 200]. Vegetation are tolerant of atmospheric air pollution based on one report[200], while one other says that they don’t do nicely in a polluted ambiance[1]. A reasonably wind tolerant plant, but it surely doesn’t like extreme maritime publicity[75]. Vegetation are prone to wind burn and recuperate variably[75]. This species is hardy to about -25°c[200]. A reasonably long-lived tree within the wild with specimens 500 – 600 years previous[229]. It’s a very priceless timber tree in N. America and it’s typically cultivated as a forestry tree in Britain, the place it often self-sows[1, 11]. It establishes nicely and grows shortly. New shoots could make 1 metre in a yr however timber hardly ever preserve that price and 30cm is nearer the typical[185]. New progress begins very slowly in April, accelerates in June and ceases in September[185]. A really uniform species within the wild[200], in cultivation it’s polymorphic and there are a lot of named varieties[1, 185, 200]. The crushed foliage has a pungent odor[245]. Favoured by many birds for roosting, offering excessive cowl and particularly for nesting, giant specimens of this tree assist to draw songbirds to the backyard[200]. Timber are notably prone to honey fungus[200]. Particular Options:
Enticing foliage, North American native, Inconspicuous flowers or blooms.


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Seed – sow March/April in a seedbed open air[78]. The seed is finest sown in pots in a body[K]. Seed can take 18 months to germinate. One month heat then one month chilly stratification has produced good outcomes[113]. When giant sufficient to deal with, prick the seedlings out into particular person pots and develop them on in a chilly body for his or her first winter, planting them out in late spring after the final anticipated frosts. Cuttings in late summer season or autumn in sandy soil in a chilly body[1, 11, 200]. Tough, it might be finest accomplished in late winter to early spring[113].

Different Names

If accessible different names are talked about right here

Discovered In

International locations the place the plant has been discovered are listed right here if the data is accessible

Weed Potential

Proper plant mistaken place. We’re at present updating this part.
Please word {that a} plant could also be invasive in a single space however could not in your space so it’s value checking.

Conservation Standing

IUCN Purple Checklist of Threatened Vegetation Standing :

Progress: S = gradual M = medium F = quick. Soil: L = mild (sandy) M = medium H = heavy (clay). pH: A = acid N = impartial B = fundamental (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = moist Wa = water.


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Topic : Chamaecyparis lawsoniana
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