Also known as Bhutan Blue Pine · Bhutan Pine · Himalayan Blue Pine
Pinus wallichiana, the Blue Pine, is a magnificent conifer known for its long, graceful blue-green needles and stately pyramidal form. Native to the Himalayas, it's a str
At-a-glance light, water, soil, and growing conditions from plant data
Full Sun
100% intensity
Prefers full sun exposure for optimal growth and needle color. Can tolerate partial shade but may become less dense.
Moderate
50% intensity
Water deeply during dry spells, especially for young trees. Ensure well-draining soil to prevent waterlogged roots.
Well-drained
50% intensity
Cold Hardy
25% intensity
Thrives in temperate climates and can withstand significant cold. Protect young trees from extreme winter winds.
Low
25% intensity
Fertilize established trees sparingly in early spring with a balanced conifer fertilizer. Avoid over-fertilization.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Pine needles and cones are generally considered non-toxic to pets and humans, but ingestion of large quantities may cause gastrointestinal upset.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Water consistently during establishment and dry periods, especially in the first few years. Allow the soil to dry slightly between waterings, but avoid prolonged drought. Reduce watering in winter when growth slows.
Ensure good drainage to prevent root rot, which this species is susceptible to.
Prune to remove dead, damaged, or crossing branches. Early spring is the best time for corrective pruning before new growth begins. Avoid heavy pruning, as it can stress the tree.
Shape young trees lightly if necessary to encourage a strong central leader and good branch structure.
Propagation is typically done by seed, sown in a cold frame in autumn. Cuttings can also be taken from semi-hardwood in late summer, but are often slower to root and may not retain the desirable characteristics as reliably as seed-grown plants.
Repotting is generally not necessary for mature trees in their natural environment. Container-grown specimens should be repotted every 2-3 years, or when root-bound, typically in early spring before new growth begins.
Use a well-draining soil mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Blue Pine (Pinus wallichiana)
Where Blue Pine (Pinus wallichiana) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Pinopsida |
| Order | Pinales |
| Family | Pinaceae |
| Genus | Pinus |
| Species | Pinus wallichiana |
Similar in genus Pinus
Answers based on plant encyclopedia data
