# Spiny Dunce Cap (Orostachys spinosa)

> Native to the harsh steppes of Siberia and Mongolia, Orostachys spinosa forms striking, symmetrical rosettes of glaucous leaves tipped with soft, harmless spines. In late autumn, it sheds its outer foliage and contracts into a dense, spherical dormant globe capable of withstanding extreme sub-zero freezes. While monocarpic, the primary flowering rosette perishes only after producing abundant basal offsets to perpetuate the colony.

- **Scientific Name:** *Orostachys spinosa*
- **Botanical Family:** Crassulaceae
- **Care Difficulty:** Easy (1/5)
- **Cold Hardiness:** -40°C (-40°F, USDA Zone 3a)
- **Pet Safety / Toxicity:** Pet-Safe (Non-toxic to cats and dogs)
- **Canonical URL:** https://sukulentler.com/en/species/orostachys-spinosa
- **Markdown Source:** https://sukulentler.com/en/species/orostachys-spinosa.md
- **Botanical Photo:** https://sukulentler.com/assets/images/articles/species_orostachys_spinosa.webp?v=1794358872

## Light & Sun Exposure

Full sun to bright direct sunlight; needs a minimum of 6 hours of direct sun daily to maintain dense, geometric foliage.

## Watering Schedule & Method

Soak and dry thoroughly during active growth in spring and summer. Keep completely dry throughout winter dormancy to prevent freezing root rot.

## Soil & Gritty Mix Formula

70% inorganic gritty minerals (pumice, crushed lava rock, coarse quartz sand) + 30% cactus peat.

## Cold Tolerance & Overwintering

-40°C (-40°F, USDA Zone 3a)

## Propagation Methods

Separation of stoloniferous basal offsets (pups) or propagation by seed.

## Available Language Editions

- [TR: Dikenli Kubbe Sukulenti (Orostachys spinosa)](https://sukulentler.com/tr/turler/orostachys-spinosa.md)
- [DE: Stachelige Narrenkappe (Orostachys spinosa)](https://sukulentler.com/de/arten/orostachys-spinosa.md)
- [ES: Gorra de Bufón Espinosa (Orostachys spinosa)](https://sukulentler.com/es/especies/orostachys-spinosa.md)