10 Seeds Common Alder Alnus glutinosa Deciduous Tree

Common Alder is a fast-growing deciduous tree valued for its rounded green leaves, catkins, and tolerance of wet soils. It develops a pyramidal to oval canopy and works well in larger landscapes, native plantings, and wildlife-friendly gardens.
Use it as a specimen tree, in hedgerows, along pond edges, or in rain gardens where its soil-holding root structure is appreciated. The wood is used in carving and small woodworking, and the catkins add seasonal interest in late winter and early spring.
Species: Alnus glutinosa
Type: Deciduous tree
Plant_Habit: Pyramidal to oval canopy
Sun: Full sun to partial shade
Soil: Moist to wet, well-drained loam; tolerates clay
Zones: 3-7
Germination: Cold stratify 30-60 days, then surface sow and keep moist
Sowing: Sow in fall or after stratification, press seed lightly into soil surface
Spacing: 20-30 feet apart
Notes: Fast-growing; thrives near water features and consistently moist sites