Spring cerastium (Cerastium semidecandrum)

Care, watering, light and tips for Spring cerastium on Floravia.

Spring cerastium

Quick facts

About Spring cerastium

Cerastium semidecandrum, commonly known as vårarve or spring sandwort, is a small annual plant belonging to the Caryophyllaceae family, native to Europe. It forms dense mats of small, oval leaves, often covered in fine hairs, and produces tiny white flowers with notched petals. It's ideal for rock gardens, path edges, or as ground cover in sunny areas, adding a delicate, wild touch.

Native range

Europe and Western Asia

Care tips

It prefers full sun exposure and well-drained soils, including sandy or stony types, adapting well to dry conditions. Watering should be moderate, allowing the substrate to dry out completely between waterings, as it is susceptible to waterlogging. Avoid heavy, clayey soils, which can lead to root rot. A common mistake is overwatering, which compromises its health and flowering.

How to save a dying Spring cerastium

Warning signs
Yellow or brown, wilted, soft leaves. General decline, lack of vigor.
First aid
Repot to well-draining soil if in a pot. Reduce watering. Ensure good ventilation.
What kills it
Overwatering and waterlogged substrate, leading to root rot.
Can it be saved?
Yes, if acted upon quickly. Remove damaged parts and improve drainage.

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