Many of the flowering plants featured on our website are available through Nature Hills Nursery. Ordering them through this link will support the Cernunnos Foundation and your garden!
Dendrobium alexandrae is an epiphytic orchid known for its attractive and delicate flowers. The plant features slender, elongated pseudobulbs and leaves that are typically lanceolate. The flowers are usually white or pale in color, with a distinct lip that may exhibit yellow or purple hues. They grow in clusters and are fragrant, adding to their appeal in horticulture.
Known Range
Dendrobium alexandrae is primarily found in:
Australia: Specifically in Queensland and the northern regions
Papua New Guinea: Various habitats ranging from lowland to montane forests
Care Requirements
Light: Prefers bright, indirect light. Avoid direct sunlight which can scorch the leaves.
Temperature: Thrives in warm to intermediate temperatures, ideally between 18°C to 25°C (64°F to 77°F).
Humidity: Requires high humidity levels, around 50-70%. Regular misting or a humidity tray can help maintain these levels.
Watering: Needs regular watering, allowing the potting medium to dry slightly between waterings. Overwatering should be avoided to prevent root rot.
Potting Medium: Grows well in a well-draining orchid mix, often composed of bark, perlite, and charcoal.
Fertilization: Use a balanced orchid fertilizer, diluted to half strength, every two weeks during the growing season. Reduce feeding during the dormant period.
Repotting: Repot every 2-3 years or when the potting medium breaks down. Best done after blooming.
Additional Notes
Propagation: Can be propagated through division or by keikis (small plantlets) that form on the pseudobulbs.
Pests/Diseases: Watch for common orchid pests such as aphids, spider mites, and scale. Treat with appropriate insecticides or horticultural oils.
Blooming Season: Typically blooms in the spring and summer, but this can vary depending on the growing conditions.
