Larix sibirica aka Siberian Larch

Taxonomy ID: 13349

Larix sibirica, or Siberian larch, is a deciduous tree. It belongs to the pine family, Pinaceae. Its native range runs from northeastern Europe across Siberia to Mongolia. It also grows in western Xinjiang, China. There it occurs in mountain sites and lowland taiga. It is not native to Britain or Ireland. The RHS lists Larix russica as a synonym.

The tree can reach about 98 feet [30 metres] tall. Its narrow crown forms a cone or pyramid. Young trees hold their branches upright. Older trees spread their branches out sideways. The soft, fine needles grow in groups of 15–30. Each needle measures about 0.8–1.6 inches long. Their upper sides are dark green. Pale bands mark the undersides. The needles turn yellowish in autumn before they fall. This seasonal change sets it apart from evergreen conifers.

Bloom dates differ between the garden sources. Chicago Botanic Garden gives March to April. Plants For A Future gives April to May. Chicago lists pink, red, and green bloom colours. The tree bears both male and female organs. Its mature cones measure about 1–1.6 inches long. They have short stalks and roughly 30 scales. The thick, leathery scales have brown hairs outside. The bracts remain hidden within the cones. Seeds ripen from October to November.

Choose an open site with sun and good air flow. The tree can also grow in light shade. It prefers moist soil that drains well. Light or gravelly soil suits it, including poor, acidic ground. It can grow on rocky slopes. Plants For A Future also lists sand, loam, and clay. Its stated pH range spans mildly acidic to mildly alkaline soil. Chicago gives USDA zones 2–5 and moderate water needs. Dormant trees withstand severe cold, but early growth faces another risk. Mild British winters can bring new growth in January or February. Late frosts and cold winds can then harm it. A north- or east-facing site is preferred over south or west.

Use it as a specimen tree or woodland canopy. Chicago reports that it attracts birds. Its strong, heavy wood serves construction, bridges, poles, and furniture. The bark supplies tannin for commercial use in northern Europe. Plants For A Future records no known food or medicinal uses. It lists no known hazards and no weed potential. These records do not establish that every part is safe to eat.

Common names

Siberian Larch

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More info:
Wikipedia • GBIF

Sources

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