Chamaecyparis lawsoniana 'Alumigold'

RHS Plant Profile

Lawson's cypress 'Alumigold'

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Synonyms

Chamaecyparis lawsoniana 'Allumii Aurea'

Conifers Trees

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A slow-growing conifer, forming a conical tree with upright branches, to 3m tall in 20 years. The flattened sprays of foliage are bright, yellowy-green

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

2.5-4 metres

Max Spread

1-1.5 metres

Size

Time to Maturity: 20–50 years
Max Spread: 1-1.5 metres
Max Height: 2.5-4 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: East–facing or South–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H6
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Cupressaceae
Native to GB/Ireland: No
Foliage: Evergreen
Habit: Columnar upright
Genus: Chamaecyparis are evergreen trees, usually of narrowly ovoid or columnar outline, with much-branched sprays of small scale-like leaves, and small, globose cones; tiny red male cones are conspicuous in a few cultivars
Name Status: Accepted

How to Grow

Cultivation

Tolerant of chalky soils but best in a moist but well-drained, preferably neutral to slightly acidic soil in sun

Propagation

Propagate by semi-ripe cuttings

Suggested planting locations and garden types

Architectural
Hedging and screens

Pruning

Trim hedging from late spring to early autumn; do not cut into old wood

Pests

May be susceptible to aphids, juniper scale and shoot-boring moths

Diseases

May be susceptible to honey fungus and Phytophthora root diseases