Troubleshooting
Madagascar Sundew problems — and how to fix them
Madagascar Sundew (Drosera madagascariensis) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Loss of sticky dew / tentacles collapse
The primary cause is insufficient light. Move to a sunnier position — at least 4 hours of direct sun. Also check that only pure (rainwater or distilled) water is being used; mineral water quickly inhibits mucilage production.
Mineral burn from tap water
Brown leaf tips progressing to whole-plant collapse are classic signs of mineral toxicity. Immediately switch to rainwater or distilled water and flush the substrate with large volumes of pure water to leach accumulated salts.
Root rot in stagnant water
While tray watering is correct, stagnant, sour water in the tray can cause rot. Refresh the tray water regularly and ensure the pot has drainage holes so water circulates up by capillary action rather than drowning the roots.
Prevent madagascar sundew problems before they start
Most madagascar sundew issues are care-mismatch, not bad luck. Dial in the basics:
Looking for madagascar sundew in general rather than its problems? Read the full madagascar sundew care guide — light, water, soil and feeding.
Madagascar Sundew problems — FAQ
Why is my madagascar sundew loss of sticky dew / tentacles collapse?
The primary cause is insufficient light. Move to a sunnier position — at least 4 hours of direct sun. Also check that only pure (rainwater or distilled) water is being used; mineral water quickly inhibits mucilage production.
Why is my madagascar sundew mineral burn from tap water?
Brown leaf tips progressing to whole-plant collapse are classic signs of mineral toxicity. Immediately switch to rainwater or distilled water and flush the substrate with large volumes of pure water to leach accumulated salts.
Why is my madagascar sundew root rot in stagnant water?
While tray watering is correct, stagnant, sour water in the tray can cause rot. Refresh the tray water regularly and ensure the pot has drainage holes so water circulates up by capillary action rather than drowning the roots.