Known for its strong, durable timber; invaluable along watercourses and in damp soils.
The black alder is the tree of choice for regenerating riverbanks, wetlands and difficult soils: its roots host nitrogen-fixing bacteria that enrich the ground, improving it for neighbouring plants. Perfect for bioengineering and riparian forestry projects.
Its timber is almost rot-proof under water and has supported the foundations of Venice and Amsterdam for centuries: entire buildings still rest on alder piles driven into the lagoon.
Browse the full catalogue: over 70 ornamental tree species ready for transplanting.