Hoya lacunosa ‘Laos’ is a unique and sought-after variety within the diverse Hoya genus. Its distinctive characteristics and appealing growth habit make it popular among plant enthusiasts. This cultivar offers both visual charm and the rewarding experience of cultivating a less common plant.
Understanding Hoya lacunosa Laos
Hoya lacunosa ‘Laos’ distinguishes itself with small, ovate leaves measuring 2 to 3 centimeters. These leaves display a slightly concave or “lacunose” appearance, giving them a subtly dimpled texture. The foliage presents a deep green color, highlighted by prominent, darker venation that creates an attractive pattern across the leaf surface.
Originating from Laos, this Hoya is an epiphyte, growing on trees, which influences its compact, trailing growth habit. This specific provenance contributes to its unique appeal among collectors, setting it apart from other Hoya lacunosa forms.
Essential Care for Hoya lacunosa Laos
Light Requirements
Hoya lacunosa ‘Laos’ thrives in bright, indirect light, mimicking its natural rainforest understory habitat. Place the plant near an east-facing window or a few feet back from a south or west-facing window for suitable illumination. Direct, intense sunlight can scorch leaves, causing yellowing or browning. Insufficient light may result in leggy growth and reduced flowering.
Watering Needs
Consistent moisture benefits Hoya lacunosa ‘Laos’, but avoid overwatering to prevent root rot. Allow the top 1 to 2 inches of potting mix to dry completely before watering. Watering frequency depends on environmental factors like temperature, humidity, and pot size, usually every 7 to 14 days. Ensure proper drainage to prevent water accumulation.
Soil and Potting
A well-draining, airy potting mix is essential for Hoya lacunosa ‘Laos’. A suitable blend includes orchid bark, perlite, and a small amount of peat moss or coco coir to retain moisture while ensuring aeration. Pots with drainage holes are essential to prevent waterlogged conditions. Repotting is needed every two to three years, or when the plant becomes root-bound, to refresh the substrate and provide space for root development.
Temperature and Humidity
This tropical Hoya prefers warm temperatures, between 65°F and 80°F (18°C-27°C), and should be protected from temperatures below 55°F (13°C). High humidity is beneficial, with levels above 60% optimal for growth and flowering. To increase humidity, place the plant near a humidifier, group it with other plants, or use a pebble tray.
Fertilization
During the active growing season (spring and summer), Hoya lacunosa ‘Laos’ benefits from regular fertilization. Use a balanced liquid fertilizer, diluted to half or quarter strength. Apply fertilizer every two to four weeks. Reduce or stop fertilization during the cooler, dormant months of fall and winter.
Propagating Hoya lacunosa Laos
Propagating Hoya lacunosa ‘Laos’ is achieved through stem cuttings. Select a healthy stem section with at least two nodes and a few leaves, cutting just below a node. Remove the lowest leaves to expose the node, as this is where roots will emerge. Cuttings can be rooted in various mediums, including water, moist sphagnum moss, or a perlite-based mix.
For successful rooting, place the prepared cutting in your chosen medium and provide a warm, humid environment. Covering the container with a plastic dome or bag helps maintain consistent humidity. Roots begin to form within several weeks, and once established, the young plant can be transferred to a suitable potting mix.
Common Issues and Solutions
Hoya lacunosa ‘Laos’ may exhibit leaf yellowing, indicating overwatering or a nutrient deficiency. Adjusting the watering schedule to allow for proper drying remedies this. Browning leaf edges suggest low humidity or scorching from direct sunlight, which is mitigated by increasing ambient moisture or relocating the plant.
Slowed growth or lack of new foliage indicates insufficient light or a need for fertilization during the growing season. Pest infestations, such as mealybugs or spider mites, can occur. Address these by regularly inspecting the plant and treating affected areas with insecticidal soap or neem oil, ensuring thorough coverage of all leaf surfaces.