Hesperocyparis glabra 'Blue Ice'

RHS Plant Profile

smooth Arizona cypress 'Blue Ice'

RHS 2003

Synonyms

Cupressus arizonica var. glabra 'Blue Ice'

Conifers Trees

A narrowly flame-shaped evergreen conifer with vivid whitish-blue foliage in dense sprays

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

2.5-4 metres

Size

Time to Maturity: 20–50 years
Max Spread: 2.5-4 metres
Max Height: Higher than 12 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun

Aspect: South–facing or West–facing or North–facing or East–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): H5
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
Name Status: Accepted

How to Grow

Cultivation

Grow in moist but well-drained soil in full sun. Protect from cool, drying winds. Tolerates dry conditions. Can be used for hedging but will require regular pruning

Propagation

Propagate by seed or semi-hardwood cuttings

Suggested planting locations and garden types

Architectural
Coastal

Pruning

No pruning required

Pests

May be susceptible to cypress aphid

Diseases

Generally disease-free but but may be susceptible to coryneum canker and honey fungus