Larix potaninii aka Chinese Larch

Larix potaninii, or Chinese larch, is a deciduous conifer. It belongs to the pine family, Pinaceae. Its native range runs from Nepal through Tibet into central China. It also reaches northern Myanmar. It grows in temperate regions and is not native to Britain. The RHS also lists the common name false larch. It records Larix thibetica as a synonym.

This tree can reach about 115 feet [35 metres]. The available account describes its growth rate as moderate. In its native range, it grows in moist forests. At lower sites, scattered trees grow near streams. Higher up, it can form stands of its own species. It grows best above about 8,200 feet [2,500 metres]. Its range extends uphill as far as the tree line. In gardens, it can form part of a woodland canopy.

Flowers appear from April to May, and wind carries the pollen. Each tree bears both male and female flowers. Seeds ripen from October to November. For cultivation, choose an open site with plenty of light. The tree does not grow in shade. It needs moist soil that drains well. Sandy and loamy soils suit it, including light, gravelly ground. It tolerates poor soil and a range of soil pH. Acid, neutral, and mildly alkaline soils are all suitable. Avoid ground that stays poorly drained.

A north- or east-facing site suits it better than warmer aspects. It can grow on rocky hillsides and mountain slopes. Dormant trees withstand severe cold, with USDA zones 4–8 listed. Mild winter spells can bring growth forward in Britain. Late frost and cold winds can then harm new growth. British growing conditions often prove unsuitable, though southwestern areas suit it best. It tolerates strong wind but not exposed coastal conditions.

People grow this tree in Asia for timber and forest planting. Its heavy, strong wood resists decay and serves many purposes. These include building work, furniture, railway sleepers, and mine supports. Its bark provides tannin. Plants For A Future records no known food or medicinal uses. It also lists no known hazards, rather than confirmed safety. Seed propagation can benefit from a month of cold treatment. Young seedlings need light shade during their first year.