Pinus parviflora (Glauca Group) 'Glauca'
Japanese white pine 'Glauca'
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.
Size
Ultimate height
Higher than 12 metresTime to ultimate height
20–50 yearsUltimate spread
Wider than 8 metresGrowing conditions
Moisture
Well–drainedpH
Acid, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| 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 ShelteredDrought resistance
Yes Hardiness
H7Botanical 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
- 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
Get involved
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