Euphorbia Knuthii

Euphorbia Knuthii
Common Name: Medusa Head

Euphorbia Knuthii is a fascinating caudiciform succulent that draws attention with its twisted, snaking stems and sculptural base. This unusual species forms a thick, woody caudex from which thin, sprawling green stems emerge—often resembling a Medusa’s head or a tangle of vines. It’s a true conversation piece and a favorite among collectors of oddball succulents and bonsai-style plants.

Native to South Africa, E. knuthii thrives in dry conditions and is known for its resilience and quirky growth. With time, the caudex becomes even more pronounced, adding to its bonsai-like charm.

☀ Light Requirements
Enjoys bright, indirect light to partial sun. Can tolerate full sun with gradual acclimation but prefers protection from harsh afternoon rays in hot climates.

💧 Watering Needs
During active growth (spring/summer), water when the soil is dry to the touch. In winter, reduce watering significantly to mimic natural dormancy. Always ensure excellent drainage to protect the caudex from rot.

🌡 Temperature Tolerance
Not frost-hardy. Protect from temperatures below 40°F. For winter shipping or colder zones, consider adding a [Heat Pack].

✨ Special Features
• Caudex-Forming – Thickened, woody base develops character with age.
• Twisting Growth – Sprawling, twining stems create a wild, medusa-like look.
• Bonsai Potential – Popular among caudiciform collectors and great for shallow pots.

Other Common Names:
Knuth’s Medusa Head, Caudiciform Euphorbia, Knuth’s Sprawling Euphorbia

This cactus will ship bare root and will be ready to place directly in a well draining soil mix like our Custom Cactus Mix.

Photos in the listings unless otherwise specified are representative of the plant that will be sent to you.
However, Plants grow differently and each plant may vary slightly in shape, size, growth pattern, etc.
Of course, if you receive a plant that you are dissatisfied with please reach out to us. We want to make it right!

If temperatures near you are below 45℉ we highly recommend adding a Heat Pack to your order.
If temperatures where you live will be much lower than 20℉ even heat packs may not work. You may consider waiting until things warm up a bit. We know you love your plants just like we do and we wouldn't want any of them to freeze.