Is Black Gold Washed Sand Safe for Venus Flytraps?

Evaluating a Specific Sand Brand for Carnivorous Plant Mixes

A grower asked about Black Gold Washed Sand for flytraps, wondering if it’s safe.

Likely Fine If It’s Pure Silica

If the sand is crushed black obsidian or colored silica (quartz/silicon dioxide with mineral colorants locked in insoluble silica), it’s safe. The minerals are bound and won’t leach. Always verify the sand is nearly pure silica—opaque grains indicate other rocks that can slowly poison plants.

Best wishes,
Steve