Mountain Arum is a tuberous woodland plant from Europe and Turkey, growing in partial shade and moist soil. It is grown mainly as a hardy wild or shade garden plant, and its key feature is poisonous red berries in autumn.
Family
Araceae (Arum family)
Grows as
Bulb
Light
Part shade, Shade
Water
Keep the soil moist during the growing season in spring, and keep it drier while the plant is dormant in summer.
Soil
Humus-rich, moist but well-drained woodland soil.
Temperature
Hardy in cold temperate climates; tolerates winter frost.
How easy
Easy
Safety
Toxic: All parts contain caustic sap that causes blistering and irritation; the bright red berries are extremely poisonous.
Native range
Europe to Cyprus
Climate
temperate
About
Arum cylindraceum is a woodland plant species of the family Araceae. It is found in most of Europe except the UK, Russia, Ukraine, Belarus, the Baltic States and Scandinavia (although it is found in Denmark), and in Turkey. It is also missing in northwestern France and southern Italy.
Where it grows
Throughout the area it is found in deciduous woodland or on the edges of coniferous woodland, preferring partly shade and somewhat moist conditions. It is found up to 1700m, lower in the northern part of the area. In the southern part it is also found on grassy or rocky slopes and pastures.
Uses
In medieval Denmark, then including parts of Germany and Sweden, starch from the tubers (also from A. maculatum) was used to stiffen clerical collars, but as the tubers contain a caustic sap that caused blistering of the hands, this was abandoned when starch from wheat became available. Today colonies of A. cylindraceum are still found close to church sites, although the species seems to have died out in southern Sweden.
Text excerpted from the Wikipedia article Arum cylindraceum by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.