Larix decidua aka European Larch

Larix decidua, European or common larch, is a deciduous conifer belonging to the pine family. Its native mountain range includes the Alps, Sudeten Mountains and Carpathians in Europe. Unlike evergreen conifers, it sheds its needles each autumn and remains bare through winter. Garden size varies between references, with Oregon State giving 30–60 feet [9–18 metres]. NC State and UConn describe larger trees reaching 80–100 feet [24–30 metres], sometimes exceeding that height. Their reported spread reaches 20–30 feet [6–9 metres], so this tree needs substantial space.

Young trees develop a pointed crown, while older specimens become broader and less regular. Horizontal branches carry drooping branchlets, creating a lighter outline than many large evergreen conifers. Mature trunk bark develops reddish-brown colouring, deep grooves and scales, while branches have smoother grey bark. Pale young shoots carry soft green needles, grouped on short spurs or arranged along longer shoots. The needles become yellow or amber in autumn before falling, providing strong seasonal colour.

Male and female reproductive structures appear on the same tree during the early spring season. UConn describes smaller yellow male structures and female structures ranging through red, pink, yellow and green. Upright, egg-shaped cones mature to brown and measure around 0.08–0.13 feet [0.025–0.04 metres] long. These cones can remain attached for years, and older trees also retain dead branches.

Plant European larch in full sun, with deep soil that drains well and retains adequate moisture. Acidic to neutral conditions suit it, and RHS accepts clay, loam and sandy soils. Oregon State warns that very dry or wet ground leads to poor growth. NC State recommends cool summers and cold winters rather than hot, humid growing conditions. Sources place it in USDA zones 2–6, while RHS assigns the UK hardiness rating H7. It suits parks, large lawns, screens and specimen planting, and also provides habitat for birds.

European foresters harvest its timber, and its resin supplies materials for varnishes and wood preservation. Routine pruning is unnecessary, but fallen cones and twigs can create litter beneath trees. Potential pests include larch casebearer, aphids, sawflies and Japanese beetles; adelgids may also cause problems. Needle cast, rust and canker occur, while RHS reports uncertain susceptibility to honey fungus. PFAF records edible inner bark and sweet manna, but also warns about significant health hazards. Reported risks include allergic reactions, airway inflammation and kidney damage associated with bark ingestion or extensive oil application.