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PlantSnap
Plant Care
Sinclair's acianthus
(Acianthus sinclairii)
Also Known As
Sinclair's acianthus, Greenhood
About This Plant
Acianthus sinclairii is a terrestrial orchid species native to Australia. It has a single, hairy leaf and a stem that grows up to 30 cm (12 inches) tall with one to three small, white flowers with purple stripes.
Plant Care Instructions
Outdoor Size Range
Up to 30 cm (12 inches)
Light Requirements
Acianthus sinclairii prefers bright, indirect light. Avoid direct sunlight as it can scorch the leaves.
Humidity Needs
Acianthus sinclairii prefers high humidity levels, around 70%. You can increase humidity by placing a tray of water near the plant or using a humidifier.
Fertilizing Schedule
Fertilize Acianthus sinclairii with a balanced fertilizer once a month during the growing season. Do not fertilize during the dormant period.
Pruning Guidelines
Remove any dead or yellowing leaves as needed. After the flowering period, cut back the stem to just above the first node to encourage new growth.
Common Pests and Diseases
Common pests for Acianthus sinclairii include spider mites, mealybugs, and scale insects. Watch for signs of infestation such as yellowing leaves or webbing and treat with an insecticidal soap.
Indoor Size Range
N/A
Watering Schedule
Keep the soil evenly moist, but not waterlogged. Water when the top inch of soil feels dry to the touch. Reduce watering during the plant's dormant period.
Temperature Range
Acianthus sinclairii prefers temperatures between 15°C (59°F) and 25°C (77°F). Avoid temperatures below 10°C (50°F) or above 30°C (86°F).
Growing Season
Acianthus sinclairii typically blooms in late winter to early spring.
Growing Difficulty Level
Acianthus sinclairii is considered moderately difficult to grow. It requires specific humidity and temperature conditions and can be susceptible to pests.
USDA Hardiness Zones
Acianthus sinclairii is not rated for USDA hardiness zones as it is not native to North America.
Did You Know?
Acianthus sinclairii is named after Sir William Sinclair, a Scottish botanist who collected the first specimen of the plant in Tasmania in 1840.
