Phalaenopsis in Hot, Humid India: Shade, Air Movement, and Cooling

30 Phalaenopsis (Anthura, Netherlands) in India. Planted in charcoal + tree bark compost. Some yellow leaves, now new leaves/roots. But ongoing yellowing. Pots free-draining. Climate: 36–37°C, up to 48–50°C. Balcony under roof, afternoon mild sun only. Water morning, mist 1–2x daily.

Too Much Light/Heat

Plants likely getting too bright. Use 40% shade cloth or build lath house. Only early morning sun.

Constant Air Movement Essential

At 35–50°C, leaves overheat without wind. Use fans if no natural breeze. Fans also dry leaves after misting, preventing night wetness.

Misting + Fans = Cooling

Mist heavily, fans evaporate = evaporative cooling. Prevents heat stress and fungal issues.