Spider Orchid with Grey Mould: Prevention & Cure
Brassia arachnoidea
Grey Mould on Spider Orchid: What to Know?
Grey Mould on Spider Orchid (Brassia arachnoidea) is a fungal condition with moderate severity. Spider Orchid has moderate susceptibility to this disease.
Spider Orchid is a medium-care plant. As an indoor plant, ensure good ventilation to aid recovery.
Unlike bacterial infections, Grey Mould on Spider Orchid can be managed with organic fungicides.
🌱 How to Care for Spider Orchid to Prevent Grey Mould?
💧 How to Water
Water every 3-5 days in summer, when the plant is actively growing and blooming, and reduce to every 7-10 days in winter. Allow the substrate to dry almost completely between waterings, but not entirely, to prevent root rot.
☀️ Lighting
Place the plant in a bright spot with strong indirect light—near an east or west-facing window, filtered through a sheer curtain at south-facing windows. Avoid direct midday sun, which burns the leaves, as well as shaded spots, which reduce blooming.
🪴 Ideal Soil
Use a specialized orchid mix based on small-grade pine bark, combined with sphagnum moss, coconut husks, and perlite for excellent drainage. Repot approximately every 2 years when the substrate begins to degrade.