The Chir Pine, Pinus roxburghii, named after William Roxburgh, is a pine native to the Himalaya.
The range extends from northern Pakistan and northern Republic of India, Nepal, Bhutan.
It generally occurs at lower altitudes than other pines in the Himalaya, from 500-2000 m, occasionally up to 2,300 metres
Pinus roxburghii is a large tree reaching 30-50 m with a trunk diameter of up to 2 m, exceptionally 3 m. The bark is red-brown, thick and deeply fissured at the base of the trunk, thinner and flaky in the upper crown. The leaves are needle-like, in fascicles of three, very slender, 20-35 cm long, and distinctly yellowish green. (source: wikipedia.org)
Genus - Pinus
Species - Roxburghii
Common name - Chir pine
Pre-Treatment - not required
Plant type - Tree
Vegetation type - Evergreen
Hardiness zones - 8 - 10
Exposure - Full Sun
Height - 50'-150' / 15 - 45 m
Spread - 10'-20' / 3 - 6 m
Growth rate - Medium
Leaf / Flower color - Green / --
Soil PH - Acidic, Neutral, Alkaline
Soil type - Clay, laom, Sand, well drained
Water requirements - Average Water
Landscape uses - Feature Plant, Shade Trees, Street Trees
1. Place the seeds in a container with tepid water and soak them for 24 hours. Change the water and wait another 24 hours.
2. Fill small pots with compost. Place one or two pine seeds on top of the compost in each pot, then cover the seeds with a thin layer (10 mm) of sand.
3. Water the sand and compost to add moisture, then place the pots in a warm, sunny location. As the seedlings emerge and grow, the soil needs to remain moist, not wet.
4. Repot the pine trees into medium-sized pots in the fall. Grow them in the pots for the following season until they are large and strong enough for transplanting into the landscape.