Optimal Soil Mixes for Drosera regia: Germination vs. Mature Plants

Derick asked for the best soil for germinating and growing D. regia, and thoughts on long-fiber sphagnum (LFS).

Seed Germination

Pure peat moss works best in cell plug trays (easy transplant). In pots, peat/sand is ideal—fine texture ensures good seed contact and easier transplanting later. Peat/perlite works but is coarser.

Mature Plants

D. regia prefers a coarse, well-draining mix like Drosophyllum: peat/pumice/sand/perlite. In the Midwest where pumice is scarce, substitute extra perlite. Cool roots and slightly drier conditions mimic its native rocky habitat (habitat photos).

On Long-Fiber Sphagnum

The nursery used LFS previously but stopped—it breaks down too fast in water-tray culture, causing rot. It's fine for top-watered Nepenthes but not for bog-style setups.