Plant Identifier
Medusa Euphorbia

Medusa Euphorbia

Euphorbia caput-medusae

Family: EuphorbiaceaeNative: South AfricaIdentified: Oct 30, 2026

A low-growing succulent plant characterized by a central, thick caudex from which many long, snake-like, green cylindrical branches radiate outward, covered in small, tooth-like tubercles.

Light
Full sun to bright indirect light, requiring at least 6 hours of sunlight daily when grown indoors or outdoors.
Water
Water deeply but infrequently, allowing the soil to dry out completely between waterings. Reduce watering significantly during the winter dormancy period. Signs of overwatering include yellowing and mushy stems.
Growth
Perennial succulent forming a low, sprawling clump with a central tuberous stem and spreading branches that can reach 1 to 2 feet in spread and up to 10 inches in height.
Learn more about Medusa Euphorbia in the encyclopedia →

Care instructions

Provide bright, direct light for several hours daily. Water thoroughly only when the soil is completely dry. Use a well-draining cactus and succulent potting mix. Fertilize lightly during the active growing season with a balanced, diluted liquid fertilizer.

Growing details

Sunlight

Full sun to bright indirect light, requiring at least 6 hours of sunlight daily when grown indoors or outdoors.

Watering

Water deeply but infrequently, allowing the soil to dry out completely between waterings. Reduce watering significantly during the winter dormancy period. Signs of overwatering include yellowing and mushy stems.

Soil

Fast-draining sandy or gravelly soil specifically formulated for cacti and succulents, with a neutral to slightly acidic pH range of 6.0 to 7.0.

Hardiness zone

USDA Hardiness Zones 9 to 11. It is sensitive to frost and freezing temperatures.

Growth habit

Perennial succulent forming a low, sprawling clump with a central tuberous stem and spreading branches that can reach 1 to 2 feet in spread and up to 10 inches in height.

Bloom season

Blooms in spring and summer, producing small, inconspicuous whitish-yellow cyathia (flowers) clustered near the tips of the branches.

Propagation

Propagated primarily through stem cuttings or by planting seeds. Allow cuttings to callus over for several days before placing them in dry, sandy soil.

Common pests & issues

Prone to root rot if overwatered or planted in poorly draining soil. Common pests include mealybugs and spider mites, which can be treated with insecticidal soap or rubbing alcohol.

Similar species

Often confused with Euphorbia flanaganii, which features flatter, more distinctly segmented terminal appendages, or Euphorbia gorgonis, which has a flatter, sunken central caudex.