Cactus & Lucky Bamboo: Too Much Light?

Cactus Bleaching Under Grow Lights

Bleached, brown tips = light stress. The plant is acclimated to lower light. Move it farther from the tubes or off to the side. 16 hours of dual 40W grow lights at 2 inches is intense.

Lucky Bamboo (Dracaena sanderiana) in Direct Sun

Southwest window = too much direct sun. It prefers bright indirect light (north window) or the same grow lights (at a distance). It is not a true bamboo and burns easily.

Adjustments

• Cactus: Increase distance to 12–18 inches from tubes.
• Lucky bamboo: Move to north window or under lights at 18+ inches.
• Monitor for recovery: new growth should be normal color.