Tamarack — Larix laricina

Overview: Cold-hardy, fast-establishing conifer that drops its needles each winter. Soft, bright green spring needles in tufts turn clear golden-yellow in fall. Graceful, open pyramid with fine twigs and textured, scaly bark—striking in groves or near water.

Size & habit: 40–70′ tall × 20–30′ wide at maturity; strong central leader; horizontal to slightly upswept branches; airy crown with age.

Growth rate: Moderate to fast (commonly 12–24″+/yr on good sites).

Hardiness: USDA Zones 2–5(6).

Light: Full sun only (very shade-intolerant).

Soil & water: Thrives in moist to wet, acidic soils—peaty, sandy, or loamy; tolerates poor, nutrient-lean ground. Avoid chronically stagnant, oxygen-poor holes and hot, droughty sites. Keep evenly moist while establishing.

Foliage, cones & bark:

• Needles: Soft, ¾–1″, in clusters on short spurs; fresh light green → gold in fall.

• Cones: Small, ½–¾”, upright; often persist through winter.

• Bark: Thin, scaly; adds winter texture.

Tolerance / concerns:

• Tolerant: Severe cold, wind, wet/poor soils.

• Sensitive: Heat and prolonged drought; road salt; heavy urban compaction.

• Pests/disease: Larch sawfly and larch casebearer (defoliators); occasional needle casts. Maintain sun, moisture, and airflow for vigor.

Pruning: Minimal. Best time late winter or just after spring flush; remove dead/crossed wood only. Not for tight shearing.

Landscape uses: Seasonal specimen, naturalized groves, shorelines and rain-garden edges (with consistent moisture), meadow margins, and wildlife plantings; provides bold gold fall color and fine winter silhouette.

Spacing (on-center):

• Specimens/groves: allow 15–25 ft

• Screen/windbreak rows (seasonal): 12–16 ft

Planting tip: Set the root flare at or slightly above grade; apply a 2–3″ mulch ring (keep off trunk). Water deeply and regularly the first 2–3 seasons, then as needed during dry spells—this species favors sun + cool, moist soils for best longevity and color.