# Window Haworthia (Haworthia cooperi)

> Haworthia cooperi is a miniature succulent native to the Eastern Cape Province of South Africa, celebrated for forming compact rosettes of swollen, glass-like leaves. Its leaf tips feature specialized translucent 'epidermal windows' that filter sunlight into photosynthetic tissues beneath the soil line. Highly adaptable and slow-growing, it is a prized jewel-like specimen in indoor succulent collections.

- **Scientific Name:** *Haworthia cooperi*
- **Botanical Family:** Asphodelaceae
- **Care Difficulty:** Easy (1/5)
- **Cold Hardiness:** -1°C (USDA Zone 10a); can endure brief light cold snaps if completely dry, though temperatures above 7°C are recommended.
- **Pet Safety / Toxicity:** Pet-Safe (Non-toxic to cats and dogs)
- **Canonical URL:** https://sukulentler.com/en/species/haworthia-cooperi
- **Markdown Source:** https://sukulentler.com/en/species/haworthia-cooperi.md
- **Botanical Photo:** https://sukulentler.com/assets/images/articles/species_haworthia_cooperi.webp?v=1793836658

## Light & Sun Exposure

Prefers bright, filtered indirect sunlight. Direct, intense afternoon sun scorches and discolors the translucent windows; morning sun or dappled light under sheer curtains is ideal.

## Watering Schedule & Method

Apply the 'soak-and-dry' method. Allow the substrate to completely dry out between waterings. Avoid pooling water in the leaf crown to prevent rot, and sharply reduce watering during winter dormancy.

## Soil & Gritty Mix Formula

Highly porous gritty mineral mix: 70% inorganic materials (pumice, zeolite, volcanic lava rock, or coarse perlite) and 30% organic cactus peat.

## Cold Tolerance & Overwintering

-1°C (USDA Zone 10a); can endure brief light cold snaps if completely dry, though temperatures above 7°C are recommended.

## Propagation Methods

Easily propagated by separating rooted basal offsets (pups), mature leaf cuttings taken with intact stem tissue, or seed germination.

## Available Language Editions

- [TR: Şeffaf Pencereli Haworthia (Haworthia cooperi)](https://sukulentler.com/tr/turler/haworthia-cooperi.md)
- [DE: Fenster-Haworthie (Haworthia cooperi)](https://sukulentler.com/de/arten/haworthia-cooperi.md)
- [ES: Haworthia de Ventana (Haworthia cooperi)](https://sukulentler.com/es/especies/haworthia-cooperi.md)