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Horn calcareous moss

Mnium hornum

Also called Swan's Neck Thyme Moss, Swan's Neck Leafy Moss, Swan’s Neck Thyme Moss

Horn calcareous moss
Photo: Daniel Das, CC0

Horn calcareous moss (Mnium hornum) is a small woodland moss native to Europe and eastern North America, growing 2 to 4 cm tall in damp, shaded, acidic places. It thrives in moist conditions, so keeping its surroundings damp is the key to growing it.

Family
Mniaceae (Mni family)
Light
Shade, Part shade
Water
Keep it consistently moist, misting or watering as needed so it never dries out.
Soil
Acidic, humus-rich, moist substrate such as decaying wood, bark or leaf litter.
Temperature
Cool to temperate conditions suited to woodland; avoid prolonged heat above about 25 °C.
How easy
Moderate

About

Mnium hornum, also known by the common names horn calcareous moss or swan's-neck thyme-moss, is a species of moss in the genus Mnium.

Where it grows

Swan's-neck thyme-moss is native to Europe and eastern North America.

Uses

In 2012, researchers in Serbia found that Mnium hornum could be used as a potential source of arachidonic acid.

Other Mnium plants

Stellar calcareous moss · Plants

Text excerpted from the Wikipedia article Mnium hornum 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.

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