Drosera capensis Needs More Light, Not Humidity

Diagnosing a Declining Cape Sundew

A Drosera capensis lost dew, stopped flowering, and developed blackened leaf tips after 9 days in shade with a mist fountain and spring water.

Root Cause: Insufficient Light

95% of sundews need full sun. The claim they tolerate shade is false. D. adelae is the only shade-tolerant commercial species, and it still wants some direct sun. Provide ≥4 hours direct sun daily.

Water Quality Matters

Spring water contains minerals. Use only rain, distilled, or RO water (TDS ≤50 ppm). Carbon filters (Brita, PUR) don't remove minerals.

Humidity Is Secondary

Sundews produce mucilage from photosynthesis, not humidity. Extra humidity is nice but not vital. Light drives dew production.

Native Habitat Reference

See D. capensis in the wild: ICPS forum

— Jeff Dallas, Sarracenia Northwest