Cathedral Window Haworthia (Haworthia cymbiformis)

Cathedral Window Haworthia

Haworthia cymbiformis

Rosettes of fleshy leaves hold geometric quiet, like living stained glass. Small succulent houseplant; common name: Cathedral Window Haworthia.

Partial sun
1/week
Beginner
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Plant Needs

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Sunlight Bright indirect light; tolerate partial shade; avoid prolonged direct midday sun which can scorch the translucent leaf windows
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Watering Water thoroughly only when the entire soil medium is completely dry; avoid overwatering to prevent root rot
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Temperature Thrives at 15–25°C; tolerate light frost down to 10°C but avoid freezing temperatures that damage leaf tissue
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Characteristics

  • Leaf: Fleshy, triangular-lanceolate leaves with translucent, window-like tips (leaf windows) to maximize low-light absorption.
  • Flower: Slender, upright inflorescence bearing small, white, tubular flowers with greenish stripes.
  • Stem: Short, non-woody stem mostly obscured by the dense, tight rosette of leaves.
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Care Guide

Watering

Water when soil is fully dry; ensure excess water drains completely from pot saucers

Fertilization

Diluted succulent fertilizer once every 2 months. Use half-strength fertilizer to prevent nutrient burn on sensitive root systems

Eggshell powder topdressing:Bake clean eggshells at 120°C for 10 minutes to kill bacteria, grind to fine powder, and lightly dust topsoil every 3 months; avoid direct contact with leaves
Pruning
  • Remove dried, brown outer leaves to maintain a tidy rosette appearance
  • Trim spent flower stalks after blooming to conserve plant energy for new leaf growth
  • Gently separate offset pups in spring for propagation without damaging the parent rosette
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic to cats

Humans: No known toxic effects on humans

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Garden Uses & Culture

Culture: N/A

Usage: Ornamental succulent for terrariums, dish gardens, and small windowsill displays