Troubleshooting
Shield Sundew problems — and how to fix them
Shield Sundew (Drosera peltata) 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.
Tuber fails to sprout in autumn
If the summer rest was too cool or moist, the tuber may have rotted or not fully matured. Ensure a genuinely warm (25–35°C), bone-dry summer dormancy. Resume watering and lower temperatures in early autumn to break dormancy.
Leggy, weak stems
Etiolation results from low light during active growth. Increase direct sun exposure or use a grow light; the peltate leaves should hold themselves horizontally on short petioles in good light.
Root rot from waterlogged dormant tuber
Any moisture in the substrate during summer dormancy will kill the tuber. Cease tray watering completely when foliage dies back and store the pot warm and dry.
Prevent shield sundew problems before they start
Most shield sundew issues are care-mismatch, not bad luck. Dial in the basics:
Looking for shield sundew in general rather than its problems? Read the full shield sundew care guide — light, water, soil and feeding.
Shield Sundew problems — FAQ
Why is my shield sundew tuber fails to sprout in autumn?
If the summer rest was too cool or moist, the tuber may have rotted or not fully matured. Ensure a genuinely warm (25–35°C), bone-dry summer dormancy. Resume watering and lower temperatures in early autumn to break dormancy.
Why is my shield sundew leggy, weak stems?
Etiolation results from low light during active growth. Increase direct sun exposure or use a grow light; the peltate leaves should hold themselves horizontally on short petioles in good light.
Why is my shield sundew root rot from waterlogged dormant tuber?
Any moisture in the substrate during summer dormancy will kill the tuber. Cease tray watering completely when foliage dies back and store the pot warm and dry.