Browning Leaves on Emerging Drosera filiformis: Normal Spring Behavior

A grower noticed browning on unfurling Drosera filiformis leaves in early spring, treated with sulfur fungicide, and worried about fungus. Photos were unclear.

Sun Exposure, Not Disease

The browning is simply a “tan” from increasing spring sun—normal for hardy sundews emerging from dormancy. Early spring fluctuations can damage tender new growth, but it’s inconsequential long-term. Wait a month; if new thread leaves fail to unfurl, then reassess. No fungicide needed unless large mold patches appear.

A follow-up photo confirmed typical hibernacula emergence: small scale leaves die back as thread leaves take over. Warmer nights will accelerate growth.