Repotting Venus Flytraps: Silica Sand Substitutes and the 5:3:2 Mix Myth

A grower in South Africa wanted to repot a Venus flytrap using a 5:3:2 peat:silica sand:perlite mix but couldn’t find true silica sand—only coarse, gray, stone-like material. They asked if that would work or if sand was even necessary.

Jeff Dallas of Sarracenia Northwest clarified that horticultural-grade washed sand is perfectly acceptable if silica sand is unavailable. Even better: a simple 1:1 peat-perlite mix works well and avoids the hassle of sourcing sand. The reddening leaves after moving the plant to full sun are normal; some temporary burn may occur, but new growth will be strong and healthy.

Bottom line: Don’t overcomplicate the mix. Equal parts peat and perlite (or a quality washed sand) is all you need. Focus on mineral-free water, full sun acclimation, and a winter dormancy for long-term success.