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Pinus parviflora Glauca Group

Japanese white pine Glauca Group

An evergreen coniferous tree capable of reaching 10-15m (33-50ft) high and as much across. when mature. The trees have a densely conical profile when young, but as they mature their shape becomes more spreading. The bark is smooth and greyish-black when young but becomes fissured on older trees. The silvery blue-green needles are stiff and produced in groups of five at the tips of new stems. They are approximately 7.5cm (3in) long and somewhat twisted, giving the trees canopy a ruffled texture. The cones are oval and reddish brown, and produced either singly, or in small clusters and can persist on the tree for around six or seven years, so that over the years, the accumulated numbers of cones remaining on older trees can be very noticeable.

Synonyms
Pinus parviflora f. glauca
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Size
Ultimate height
Higher than 12 metres
Time to ultimate height
20–50 years
Ultimate spread
Wider than 8 metres
Growing conditions
Loam
Sand
Moisture
Well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Grey Silver Blue Green Red Brown
Summer Grey Silver Blue Green Red Brown
Autumn Grey Silver Blue Green Red Brown
Winter Grey Silver Blue Green Red Brown
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H7
Botanical details
Family
Pinaceae
Native to GB / Ireland
No
Foliage
Evergreen
Habit
Spreading branched
Genus

Pinus can be shrubs or large, evergreen trees, some species with attractive bark, developing an irregular outline with age and bearing long needle-like leaves in bundles of 2, 3 or 5; conspicuous cones may fall or remain on the tree for years

Name status

Accepted

How to grow

Cultivation

Grow in well-drained, preferably neutral to acidic soil in full sun

Propagation

Propagate by seed, by semi-ripe cuttings, by hardwood cuttings, or by grafting, see: trees and shrubs from seed

Suggested planting locations and garden types
  • Architectural
  • City and courtyard gardens
  • Cottage and informal garden
  • Patio and container plants
  • Low Maintenance
Pruning

No pruning required

Pests

May be susceptible to adelgids, conifer aphid, sawfly larvae, and pine shoot moth

Diseases

May be susceptible to honey fungus and needle cast diseases

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