Chir pine, also known as Indian Longleaf pine, is common to the most southern U.S. forests, although it is native to the Himalayas, where it is widely used for lumber. Needles of Pinus roxburghii are long and deciduous during dry seasons, but they usually remain on the tree for the better part of the year. Evergreen and coniferous, the trunk can grow to six feet (1.8 m.) around. Using chir pine in landscapes is normal too, but you should allow plenty of room for the specimen, which can reach 150 feet (46 m.) at maturity. However, the tree more commonly reaches 60- 80 feet (18-24 m.), still needing a good deal of space. It grows to a 30- to 40-foot (9-12 m.) spread, too. Cones on mature trees grow in dense clusters.
Chir Pine Care
Pinus Roxburghii



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How to Care for the Plant
Water
Established plants tolerate drought
Fertilizer
Fertilization is not always necessary for young pine trees. Amend the soil before planting if you have that option.
Sunlight
Pine species in general require a sunny position if they are to grow well and, whilst the different species have their own soil preferences, most will thrive in a light well-drained sandy or gravelly loam
Soil
These trees grow best in acidic soils amended with finished compost or other organic content.
Temperature
It is not a very cold-hardy plant, being able to tolerate short periods with temperatures down to around -5°c when fully dormant
Additional
The wood, sawdust and resins from various species of pine can cause dermatitis in sensitive people
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