Moss campion (Silene acaulis)

Care, watering, light and tips for Moss campion on Floravia.

Moss campion

Quick facts

About Moss campion

Silene acaulis, also known as 'Moss Campion', is a small, compact, cushion-forming perennial native to arctic and alpine regions. Its tiny green leaves create dense mats, adorned with minute pink or white flowers barely rising above the rosette, creating a mossy, flowering effect. It is ideal for rock gardens, wall crevices, or as ground cover in cold climates, adding a delicate yet resilient touch.

Native range

Arctic and alpine regions of the Northern Hemisphere (Europe, Asia, North America)

Care tips

It requires full sun to light partial shade and very well-drained, sandy or gravelly soil, mimicking its alpine habitat. Watering should be moderate, allowing the substrate to dry out between waterings to prevent waterlogging, to which it is very sensitive. Avoid excessive moisture, especially in winter, as this can lead to root rot in this species adapted to dry, cold conditions. A common mistake is planting it in heavy or clayey soils, which almost always results in its decline.

How to save a dying Moss campion

Warning signs
Cushion softening, yellowing, or browning from the base. Little to no flowering.
First aid
Check drainage and substrate moisture. Ensure good ventilation and full sun. Remove soft or rotten parts.
What kills it
Excessive moisture or poor drainage, leading to root and stem rot. Also lack of light.
Can it be saved?
Yes, if rot is not too advanced. Act quickly to improve growing conditions.

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