Dendrobium Leaves Yellowing in Sunny NYC Apartment: Too Much Light

Batch of Dendrobiums Turning Yellow in Intense Sun

Several Dendrobiums in very sunny NYC apt, watered weekly, no standing water. Many leaves extremely yellow.

Cause: Excessive Light

Dendrobiums love bright light but not direct midday sun. Intense NYC sun through unshaded windows bleaches/yellows leaves.

Fix

• Move 3 feet back from window.
• Or add sheer curtain/screen.
• As summer intensifies, move to east window (morning sun only).

Leaves may green up slightly, but damaged areas won't recover. New growth will indicate correct light level.