Overview
Dendrobium rarum is a clump forming, columnar upright orchid in the genus Dendrobium, part of the Orchidaceae family, with evergreen foliage. Dendrobium rarum grows best in full sun and partial shade, and tolerates loam soils and neutral pH. Its UK hardiness is rated H1a. Suggested uses include houseplants and conservatory and greenhouse.
About
Dendrobium rarum is a clump-forming, columnar upright orchid belonging to the genus Dendrobium, known for its elongated pseudobulbs and narrow to oval evergreen leaves. This cultivar produces prominent flowers in spring and summer from racemes or panicles that emerge from the nodes along the stems. It thrives in well-drained loam soil with a neutral pH, preferring full sun to partial shade and a sheltered position. Suitable for cultivation as a houseplant or in conservatories and greenhouses, it requires planting at the appropriate depth and can be propagated by division or keiki removal.
Growing conditions
Best soil and position for Dendrobium
- Sunlight
- Full sun, Partial shade
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- East-facing, West-facing, North-facing, South-facing
- Exposure
- Sheltered
- UK hardiness
- H1a
Plant details
Dendrobium rarum size, habit and characteristics
- Plant type
- Orchid
- Habit
- Clump forming, Columnar upright
- Foliage
- Evergreen
- Suggested uses
- Houseplants, Conservatory and greenhouse
Care notes
Pruning and caring for Dendrobium rarum
- Propagation
- Division, Keiki removal
- Pest resistance
- Scale insects, Aphids, Mealybugs, Red spider mite
Frequently asked questions
Where is the best place to plant Dendrobium rarum?
Dendrobium rarum prefers full sun and partial shade. It suits sheltered positions.
What soil does Dendrobium rarum need?
Dendrobium rarum grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
Is Dendrobium rarum hardy in the UK?
Dendrobium rarum has an RHS hardiness rating of H1a, meaning it needs tropical warmth above 15°C and must be grown under glass in the UK.
How do I propagate Dendrobium rarum?
Division, Keiki removal.
More in the Dendrobium genus
- Dendrobiumdendrobium
- Dendrobium amplumblack-tongued orchid
- Dendrobium aphrodite
- Dendrobium bracteosum
- Dendrobium bullenianum
- Dendrobium bursigerum
- Dendrobium christyanum 'Lillian'
- Dendrobium chryseum
