Hoya Sumatra is an epiphytic climber with thin stems and roots to help it anchor itself.
Native to: This striking Hoya originates from the tropical forests of Sumatra. In its natural habitat, it clings to trees and shrubs, thriving in the humid and shaded understory of the forest.
Water: Water this Hoya when the top 3 cm of soil are dry to the touch. It is crucial to provide good drainage, as Hoyas are susceptible to root rot if left in overly moist soil. During its growing season, typically spring and summer, keep the soil consistently moist but not waterlogged. In the dormant period, allow the soil to dry out a bit more between waterings.
Light: This plant flourishes in bright, indirect sunlight to dappled shade. Direct sunlight can cause leaf burn, so it is best positioned in a spot where it receives filtered light. It can tolerate lower light conditions but will grow more slowly and may not flower as readily.
Humidity: Hoyas prefer higher humidity levels, ideally above ambient indoor humidity. Aim for levels between 60% and 80%, which can be achieved with a humidifier or by placing the plant on a pebble tray filled with water. This species is also a good candidate for a conservatory or a humid room such as a bathroom.
Temperature: For optimal growth, maintain indoor temperatures between 18°C and 26°C. Avoid exposing the plant to temperatures below 15°C, as it can suffer from cold damage. Consistent warmth, mimicking its tropical origins, will help it thrive and possibly encourage it to produce its beautiful, waxy flowers.