Peat Moss Alternatives for Carnivorous Plants: Coir, Ethics, and Practical Tips

A Vancouver, BC grower wanted to avoid peat moss due to habitat destruction concerns. They asked about coir, clay pellets, or hydroponic media for Sarracenia, Venus flytraps, and sundews in an outdoor bog.

Jeff Dallas confirmed coir works but breaks down faster, requiring more frequent repotting. Flytraps may not perform as well. Critical: All coir contains salts—rinse, soak, drain, and repeat 3+ times until a TDS meter reads near zero. He also noted that the horticultural industry consumes the vast majority of peat; carnivorous plant growers are a tiny fraction. Canadian peat harvesting is relatively well-regulated. He linked to the International Peat Society for further research.