Alder
Alnus glutinosa
- Layer 1 · Canopy
- Nitrogen fixer
Status by region
No restrictions recorded in the lists we checked.
Checked against the European Union list (Regulation 1143/2014) · Portugal's national invasive species list (Decreto-Lei 92/2019).
Information based on the cited sources, not legal advice — always confirm your local rules.
About
Native to Europe, the alder is an indigenous tree associated with watercourses and very damp soils. It fixes atmospheric nitrogen in the soil through root nodules in symbiosis with actinobacteria. It is a pivotal pioneer species in ecosystem regeneration and bank stabilisation.
See which trees the alder grows well with
We have no trees recorded with this species yet. Start from the tree on your land.
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Needs
- Water: High
- Light: Full sun
- Size: Tree up to 20 m
- Mature diameter: 6 m
- Soils: Clay, Loam, Sandy
- Climates: Atlantic coast, Inland / Continental, Mountain / cold
Calendar
- January — Planting
- February — Planting
- March — Harvest
- April — Harvest
- May
- June
- July
- August
- September
- October — Harvest
- November — Planting
- December — Planting
- Harvest
- Planting
Medicinal use: The tannin-rich bark is used in traditional medicine for gargles and astringent baths.
Where to buy
Related plants
Other species in the same layer or with the same function.
See which trees the alder grows well with
We have no trees recorded with this species yet. Start from the tree on your land.
No account needed.
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