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Arachnis Flosaeris, commonly known as the Scorpion Orchid, is a striking orchid species native to tropical regions of Southeast Asia. It's known for its unique, spider-like flowers and can grow quite large.
Here's a comprehensive guide care for Arachnis flosaeris spider orchid :
1. Light:
Arachnis Flos-aeris is a sun-loving orchid and requires bright, direct sunlight to thrive and bloom prolifically.
Indoors: Place it on a south-facing windowsill where it can receive full sun for at least part of the day.
Outdoors/Greenhouse: Provide 70-100% sunlight daily. During sunny summer months, a light shade of 25-35% can be beneficial to prevent scorching, with slightly less shade on overcast winter days.
2. Temperature:
This is a warm to hot growing orchid.
Maintain temperatures between 65∘F (18∘C) minimum to 95∘F (35∘C) maximum. It tolerates high temperatures well.
3. Watering:
Regular watering is essential, but allow the potting medium to dry out completely between waterings.
Do not let the roots sit in standing water, as this can lead to root rot.
During active growth (especially in rainy seasons), less watering might be needed. In summer and sunny days, continuous misting or drenching of leaves and roots helps keep the plant cool and moist.
These orchids can withstand some stress, which can actually induce flowering.
4. Humidity:
Arachnis Flos-aeris thrives in high humidity environments.
Mimic its natural habitat (mangroves and along rivers) by providing good air circulation while maintaining humidity.
5. Potting Medium and Repotting:
These orchids are epiphytic (growing on trees) or scrambling lithophytes (growing on rocks) in nature.
They can be grown in pots, baskets, or mounted on slabs.
Use a coarse potting medium that drains well, such as:
Charcoal
Brick and charcoal mix
Coconut husk and wood shavings
If planting in a bed of soil, ensure good drainage and use mulching.
Repot when the plant outgrows its container or the potting medium breaks down.
6. Fertilization:
Fertilize regularly, ideally twice a week, with a balanced orchid fertilizer.
During active growth, a good nitrogenous fertilizer is beneficial.
During flowering stages, switch to a fertilizer rich in potash and phosphorus.
Continuous application of organic cakes rich in these nutrients can also be helpful.
7. Air Circulation:
Good air circulation is crucial to prevent fungal diseases, especially in high humidity.
8. Support:
Arachnis Flos-aeris can grow quite tall (up to 10-15 feet or more) and needs support as it grows. Provide stakes or a sturdy structure for it to climb.
9. Pests and Diseases:
Common issues can include:
Fungal diseases: Root blackening, leaf blotch, white blotch, whole plant withering. Good air circulation and proper watering can help prevent these. Weekly sprays of organic fungicides or neem can also be beneficial.
Pests: Aphids can stunt growth and spread diseases.
Physical damage: Wounds can lead to infections.
Monitor your plant regularly for any signs of problems and address them promptly.
10. Propagation:
Arachnis Flos-aeris can be propagated by stem cuttings. Cutting back the plant can also encourage bushier growth.
By providing these ideal conditions, you can enjoy the unique and often fragrant blooms of your Arachnis Flos-aeris.
