About Haworthia coarctata f. chalwinii
Haworthia coarctata f. chalwinii is a distinctive succulent variety characterized by its columnar growth habit and intricate leaf patterning. This slow-growing plant forms dense clumps of upright, dark green leaves adorned with raised white tubercles that create a striking textured appearance. The leaves exhibit a subtle reddish tint when exposed to bright light conditions. Mature specimens may produce slender flower spikes bearing small white flowers during summer months. Its compact size and architectural form make it particularly suitable for container cultivation and xeriscape arrangements.
How to Care for Haworthia coarctata f. chalwinii
Light: Bright, indirect light proves optimal for this variety, with 3-4 hours of morning sun being particularly beneficial. Protection from intense afternoon sunlight prevents leaf scorching while maintaining the plant's vibrant coloration.
Water: Moderate watering proves sufficient, with thorough irrigation recommended only after the soil has completely dried. During winter dormancy, watering frequency should be reduced significantly to prevent root rot.
Temperature: This cultivar demonstrates preference for temperatures between 65-80°F (18-27°C). Brief exposure to 50°F (10°C) is tolerated when the plant remains dry, though protection from frost remains essential.
Soil & Potting: A well-draining substrate composed of 60% mineral grit ensures proper root aeration. Shallow containers with adequate drainage holes accommodate the plant's shallow root system most effectively.
Fertilizer: Diluted, balanced fertilizer applications at quarter strength every 6-8 weeks during the growing season support healthy development without risking nutrient burn.
Pests & Disease: While generally pest-resistant, occasional mealybug infestations may occur in leaf crevices. Early intervention with isopropyl alcohol applications proves most effective for control.
Propagation: Offsets that develop around the mother plant provide the most reliable propagation material. These should be separated during repotting and allowed to dry for 2-3 days before planting in fresh substrate.
More Information
Primary color: Dark green with white tubercles
Secondary color: Reddish tint (light-stressed)
Bloom color: White
Product format: 4 inch potted plant
Cold hardiness: USDA Zones 10-11
Suitability: Windowsills, office environments, succulent collections
Propagation: Offset division
Special characteristics: Drought-tolerant, low-maintenance, non-toxic
