Haworthia emelyae var. comptoniana is a captivating succulent known for its unique appearance and straightforward care. A distinct variety, it adds interest to any succulent collection. Its compact size and striking foliage make it appealing for indoor cultivation, thriving in arid conditions. Its resilience and adaptability make it a rewarding species for both novice and experienced growers.
Unique Characteristics
Haworthia emelyae var. comptoniana has distinct physical attributes, forming a stemless rosette typically 5-9 cm in diameter.
Leaves are broad and triangular, 4-5 cm long and 2 cm wide at the base. Its leaves are noted for their flattened, smooth ends and a pellucid, reticulated area at the tip, featuring pale white-flecked “veins” that converge at the apex.
While the species Haworthia emelyae often exhibits purplish-brown tints, H. emelyae var. comptoniana is usually green. Leaf color, reticulation, and length can vary, with some displaying darker hues or more pronounced specks.
Care Requirements
Light
Haworthia emelyae var. comptoniana thrives in bright, indirect light conditions. Placing it near a window with filtered sunlight, such as an east-facing window, is ideal.
Direct, intense sunlight, especially during the hottest parts of the day, can cause the leaves to scorch or turn a reddish-brown, indicating stress. Conversely, insufficient light can lead to etiolation, where the plant stretches and loses its compact rosette form, and the foliage may appear paler.
Aim for 6-8 hours of bright, indirect sunlight daily.
Watering
This succulent is adapted to arid environments and stores water in its thick leaves, making it drought-tolerant. The “soak and dry” method is recommended: water thoroughly until water drains from the pot’s bottom, then allow the soil to dry completely before watering again.
Overwatering is a common issue that can lead to root rot, so it is safer to underwater than overwater. During the active growing seasons of spring and fall, watering every two weeks is a guideline, but this frequency should be adjusted based on environmental factors like temperature and humidity.
Reduce watering significantly during its dormancy in cooler winter months and hot summer periods.
Soil
A well-draining soil mix is essential for the health of Haworthia emelyae var. comptoniana, preventing waterlogging and root rot. A commercial succulent and cactus soil mix provides a suitable base.
For an enhanced homemade blend, combine equal parts of potting soil, coarse sand, and perlite or pumice. This composition ensures excellent aeration and drainage.
The soil should contain 50% to 70% inorganic materials for optimal drainage.
Temperature and Humidity
Haworthia emelyae var. comptoniana prefers temperatures ranging from 20 to 38°C (72 to 100.4°F). It exhibits good resilience to temperature fluctuations, tolerating a range from 5°C (41°F) to 43°C (109°F).
While it can withstand light frost, it requires protection from heavy frost. Typical household humidity levels are suitable for this plant.
Fertilization
Haworthia emelyae var. comptoniana has minimal nutrient requirements. During its active growing season in spring and fall, a balanced liquid fertilizer diluted to half strength can be applied sparingly, every 3-4 weeks.
This supports growth and root development. Avoid over-fertilization, which can harm delicate roots.
Cease all fertilization during the plant’s dormant period in winter.
Propagation
Propagation is achieved through offsets, also known as pups, which are small plantlets that grow around the base of the mature plant. These offsets can be carefully separated using a clean, sharp tool to minimize damage to both the mother plant and the new offset.
After removal, allow the cut surface to callus or dry for a few days before planting in well-draining soil. Callusing prevents rot.
Leaf cuttings are also a viable method, though they can be slower to root and develop. For leaf cuttings, ensure the cut end is callused before inserting into soil.
Repotting
Repotting is needed every two to three years, or when the plant becomes root-bound. The best time for repotting is during the spring, which aligns with its active growth period.
Choose a slightly larger container with ample drainage holes. Carefully remove the plant, gently handling roots to avoid damage. Remove any old, dead roots during this process.
After placing in fresh, well-draining soil, water lightly to help it settle, then place in bright, indirect light for recovery.
Common Challenges
Overwatering is a common challenge, leading to root rot. Symptoms include wilting or yellowing leaves, or the plant turning black and mushy. To address this, reduce watering frequency and ensure soil dries between waterings.
Light-related stress can manifest as reddish-brown discoloration from too much direct sun or etiolation (stretching) from insufficient light. Adjusting the plant’s position to provide bright, indirect light can correct these issues.
Pest infestations, though less common, can occur. Mealybugs appear as white, cottony masses, often hiding in leaf crevices. Spider mites can cause fine webbing, and aphids may cluster on new growth. Isolating affected plants and treating with appropriate insecticidal soap or horticultural oil can manage these pests.