Hoya Annakey, a hybrid of Hoya nicholsoniae and Hoya erythrina, is a captivating choice for plant enthusiasts. This cultivar is known for its pleasing foliage, which can develop a red hue when exposed to sufficient light, a phenomenon sometimes referred to as “sun stressing.” Beyond its attractive leaves, Hoya Annakey is also recognized as a relatively quick bloomer, making it a rewarding addition to an indoor plant collection.
Hoya Annakey Care
Light Needs
Hoya Annakey thrives in bright, indirect light, mimicking its natural habitat beneath a canopy. An east or south-facing window provides ideal morning sun without harsh afternoon rays. While it tolerates some direct morning sun, prolonged exposure to strong light can scorch leaves. Insufficient light leads to leggy growth, smaller leaves, and inhibits blooming. If natural light is limited, full-spectrum LED grow lights can supplement, providing 12 to 14 hours daily for optimal growth.
Watering
Hoya Annakey stores water in its thick, waxy leaves, similar to a succulent. Overwatering is a common issue leading to root rot. Use the “soak and dry” method: allow the top one-third to half of the potting mix to dry completely between waterings during the active growing season. Thoroughly drench the soil until water drains, then empty any excess from the saucer. Limp or wrinkled leaves indicate underwatering, while yellowing leaves with brown or black petioles suggest overwatering.
Soil Requirements
A well-draining, airy, and chunky potting mix is essential for Hoya Annakey, as their epiphytic nature requires good root air circulation. Standard potting mixes often need amendments for drainage and aeration. An ideal mix includes components like orchid bark, perlite, and coco coir. A common blend is two parts orchid bark, one part coco coir, and one part perlite, ensuring drainage, airflow, and some moisture retention.
Temperature and Humidity
Hoya Annakey prefers warm environments, with an ideal temperature range between 61°F (16°C) and 75°F (24°C). It does not tolerate cold conditions well; protect it from drafts and sudden temperature fluctuations. While it tolerates drier conditions than some other Hoyas, it benefits from moderate humidity above 40%. Increase humidity by using a pebble tray, grouping plants, or a room humidifier, especially in drier months.
Fertilizing
Hoya Annakey is not a heavy feeder, but regular fertilization during its active growing season (spring and summer) supports robust growth and blooming. Apply a balanced, water-soluble fertilizer (e.g., 2-2-2 NPK), diluted to half strength, every three to four weeks. Once flowering begins, switch to a higher phosphorus fertilizer (e.g., 5-10-3) to encourage more prolific blooms. Withhold fertilization during the dormant period in fall and winter.
Propagating Hoya Annakey
Propagating Hoya Annakey is commonly done through stem cuttings. Select a healthy stem section with at least one node and a few leaves, making a clean cut below a node where roots will emerge. Cuttings can be rooted in water or a well-draining substrate. For water rooting, submerge the node in a clear container and change water every few days. For substrate rooting, plant in a light, airy mix. Warmth and elevated humidity encourage faster root development. Once roots are several inches long, transition the cutting to a permanent pot.
Common Hoya Annakey Problems
Hoya Annakey can face common houseplant issues, mainly pests and fungal diseases. Sap-sucking pests like mealybugs (small, white, cottony masses) and spider mites (fine webbing, stippling) are frequent. Treat them by wiping with rubbing alcohol or applying insecticidal soap or neem oil. Fungal diseases, especially root rot, result from overwatering or poor drainage. Symptoms include wilting, yellowing leaves, and mushy stems. Prevent root rot by ensuring well-draining potting mix and avoiding standing water. If suspected, remove the plant, trim affected roots, and repot in fresh, appropriate soil.
Encouraging Hoya Annakey Blooms
To encourage Hoya Annakey to bloom, provide adequate bright, indirect light, as insufficient light prevents flowering. Aim for about 6 hours of bright, indirect light daily for consistent blooming. Plant maturity plays a role, with many Hoyas taking a few years to reach blooming age. Allowing the plant to become slightly root-bound can stimulate blooming by encouraging energy towards reproduction. Fertilizing with a phosphorus-rich fertilizer during the growing season also supports flower production. Avoid disturbing the peduncles (flower spurs), as Hoyas often re-bloom from these points.