Treating Mold and Fungus on Drosera and Sarracenia

Rescuing Carnivorous Plants from Mold Outbreaks

After ten days of dark, moist conditions, Drosera and Sarracenia can suffer severe mold infestations. Immediate action is crucial to save surviving plants.

Step-by-Step Recovery Plan

1. Remove all dead material. Trim dead leaves and pitchers from surviving plants. Discard or burn infected debris.
2. Apply sulfur fungicide. Spray all plant parts and soil surface generously. Safer® brand sulfur fungicide (available at garden centers) works well. A white residue is normal.
3. Repot if necessary. If soil is covered in mold or rhizomes show fungal attack, transplant into fresh, sterile media. Treat rhizomes with fungicide before repotting.
4. Improve environment. Increase airflow and sunlight. Ensure plants receive bright light and good ventilation to prevent recurrence.

Prevention Tips

• Avoid prolonged dark, wet conditions.
• Use mineral-free water (rain, distilled, or RO).
• Provide adequate light—most carnivorous plants need full sun or strong artificial light.
• Monitor humidity; high humidity without airflow encourages mold.

With prompt treatment and better growing conditions, most plants recover. Regular inspection catches problems early.

— Jacob Farin, Sarracenia Northwest