Pinus roxburghii

Pinus roxburghii is an evergreen Tree growing to 40 m .
It is hardy to zone 9. It is in leaf all year, and the seeds ripen in April. The species is monoecious and is pollinated by Wind. The plant is not self-fertile.
Suitable for: light and medium soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: acid, neutral and basic soils and can grow in very alkaline soils.
It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.

Industrial Crop: Hydrocarbon Management: Standard Regional Crop
Thrives in a light well-drained sandy or gravelly loam. Succeeds on calcareous soils. Dislikes poorly drained moorland soils. Dislikes shade. Established plants tolerate drought. The chir pine is not very hardy in Britain, succeeding outdoors only in the mildest areas of the country. In the driest parts of its native range the leaves are shed after 10 - 11 months, making it deciduous. Trees are extensively tapped for their resin in India and are the main source of resin in that region. Plants are strongly outbreeding, self-fertilized seed usually grows poorly. They hybridize freely with other members of this genus. This species is closely related to P. canariensis. Leaf secretions inhibit the germination of seeds, thereby reducing the amount of plants that can grow under the trees. Plants in this genus are notably susceptible to honey fungus.