The Hoya 'Black Cat' Callistophylla, often just referred to as Hoya Callistophylla 'Black Cat', is a particularly striking variety of Hoya that is cherished for its unique and beautiful foliage. This variety is known for its long, lance-shaped leaves that are dark green in color, with striking lighter green to almost yellow veining. The 'Black Cat' nickname likely comes from the dark appearance of the leaves, which can appear almost black in certain lighting conditions, combined with the plant's elegant and sleek appearance.
Description
Hoya Callistophylla 'Black Cat' features elongated, lanceolate leaves that can grow quite large, often reaching lengths of up to 15 cm (about 6 inches) or more. The leaves are thick and waxy, a characteristic feature of Hoyas, making them somewhat succulent-like in their water storage capabilities. This Hoya is a climber, often grown in hanging baskets where it can elegantly drape or trained on supports to showcase its growth habit. When it blooms, the Hoya 'Black Cat' produces clusters of star-shaped, fragrant flowers that are a creamy white color with a pink or red center, adding to its ornamental appeal.
Care Guide
Lighting: Prefers bright, indirect light. Direct sunlight can scorch the leaves, while too little light can hinder flowering and reduce the vibrancy of the leaf coloration. East or west-facing windows are ideal, where the plant can enjoy the gentler morning or evening sun.
Watering: Allow the top inch of soil to dry out between waterings. Hoyas prefer to be on the drier side, so over-watering should be avoided to prevent root rot. Water less frequently in winter when the plant's growth slows.
Humidity: Thrives in moderate to high humidity environments but is quite adaptable and can tolerate lower humidity levels. If your home is particularly dry, consider using a pebble tray or a humidifier to increase humidity around the plant.
Temperature: Enjoys warm temperatures, ideally between 18°C to 29°C (65°F to 85°F). Protect it from temperatures below 10°C (50°F), as it can be sensitive to cold.
Soil: A well-draining, airy potting mix is essential. Mixes designed for orchids or succulents work well for Hoyas, as they provide the drainage and aeration that these plants require.
Feeding: Use a balanced, water-soluble fertiliser diluted to half strength every 4-6 weeks during the growing season. Do not fertilise in the winter months.
Repotting: Hoyas prefer to be slightly root-bound, so repotting is only necessary every 2-3 years or if the plant has outgrown its pot. Use a pot only slightly larger than the current one to prevent excess moisture from accumulating in the soil, which could lead to root rot.
Pest and Diseases: Hoyas are relatively pest-resistant but can occasionally be affected by mealybugs, spider mites, and aphids. Inspect regularly and treat any infestations promptly with insecticidal soap or neem oil. Avoid over-watering to prevent fungal diseases.
The Hoya 'Black Cat' Callistophylla is a stunning, somewhat low-maintenance plant that can add a touch of the exotic to any indoor space. With its striking foliage and potential for beautiful blooms, it makes a great addition to any Hoya or indoor plant collection, provided its basic care needs are met.
