Petty spurge (Euphorbia peplus)

Care, watering, light and tips for Petty spurge on Floravia.

Petty spurge

Quick facts

About Petty spurge

Euphorbia peplus, also known as 'radium plant', is a small annual herbaceous plant, often considered a medicinal 'weed'. It is characterized by its reddish stems, pale green oval leaves, and small flowers with yellowish bracts that form a distinctive inflorescence. It can be an interesting addition to medicinal plant gardens or as an understory plant in temperate zones.

Native range

Europe, North Africa, and much of temperate Asia

Care tips

It prefers partial shade or indirect sunlight; intense sunlight can scorch its leaves. It requires well-draining soil and prefers consistent moisture, but not waterlogging; water when the top layer of the substrate is dry to the touch. It adapts to a variety of soils but prefers those rich in organic matter. Avoid direct contact with the milky sap, as it is irritating and toxic.

How to save a dying Petty spurge

Warning signs
Yellowish or whitish leaves, soft or blackened stem. Excessive latex secretion.
First aid
Repot into fresh, well-draining soil. Reduce watering if waterlogged; increase if dry. Ensure good air circulation.
What kills it
Overwatering causing root rot. Also lack of light or frost.
Can it be saved?
Yes, if roots aren't completely rotted and stem still has firm sections.

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