Black Haworthia (Haworthiopsis nigra)

Black Haworthia

Haworthiopsis nigra

Deep charcoal leaves hold desert quiet, a compact sculptural succulent. Evergreen succulent; common name: Black Haworthia.

Partial sun
1/week
Beginner
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Plant Needs

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Sunlight Bright indirect sunlight; tolerate partial shade, avoid prolonged midday summer sun that can scorch leaf tips
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Watering Water thoroughly only when the soil is completely dry; avoid standing water to prevent root rot
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Temperature Thrives in 15–25°C; tolerate brief light frost down to 5°C, avoid temperatures below 0°C
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Characteristics

  • Leaf: Triangular, fleshy leaves in tight rosettes; deep charcoal to dark green, with translucent white windowed leaf tips
  • Flower: Slender upright raceme bearing small, tubular white flowers with greenish longitudinal stripes
  • Stem: Short, non-woody stem mostly obscured by the dense rosette of leaves
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Care Guide

Watering

Water when soil is fully dry, approximately every 7–10 days

Fertilization

Diluted succulent fertilizer once monthly. Use low-nitrogen fertilizer to promote compact growth and prevent leggy rosettes

Eggshell powder topdress:Grind dried eggshells into fine powder; sprinkle a thin layer on soil surface to boost calcium content and improve soil drainage
Pruning
  • Remove dried outer leaves to maintain a tidy rosette shape and improve airflow
  • Trim spent flower stalks after blooming to conserve the plant’s energy
  • Remove any rotting leaves or offset pups as needed to prevent fungal growth
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic to cats; no adverse effects from ingestion or contact

Humans: No known toxicity to humans; safe for handling and accidental ingestion of small amounts

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Garden Uses & Culture

Culture: Symbolizes resilience and understated beauty in succulent horticulture

Usage: Ornamental succulent for indoor terrariums, dish gardens, or arid outdoor rock gardens