Troubleshooting
Neli's Tongue Plant problems — and how to fix them
Neli's Tongue Plant (Glottiphyllum nelii) 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.
Leaf elongation from overwatering
G. nelii's leaves should be notably short and plump. If they become elongated, reduce watering frequency immediately and increase light. This is a sign of too much water or nutrients rather than a pest issue.
Summer rot during dormancy
Watering during the summer rest period causes leaves to turn transparent and rot at the base. The slight summer shrivelling of leaves is normal — resist watering until new growth resumes in early autumn.
Aphids on flower buds
Aphids sometimes cluster on emerging flower stems in autumn. Knock off with a fine jet of water or dab with neem oil solution. Treat promptly before they spread to neighbouring plants.
Prevent neli's tongue plant problems before they start
Most neli's tongue plant issues are care-mismatch, not bad luck. Dial in the basics:
Looking for neli's tongue plant in general rather than its problems? Read the full neli's tongue plant care guide — light, water, soil and feeding.
Neli's Tongue Plant problems — FAQ
Why is my neli's tongue plant leaf elongation from overwatering?
G. nelii's leaves should be notably short and plump. If they become elongated, reduce watering frequency immediately and increase light. This is a sign of too much water or nutrients rather than a pest issue.
Why is my neli's tongue plant summer rot during dormancy?
Watering during the summer rest period causes leaves to turn transparent and rot at the base. The slight summer shrivelling of leaves is normal — resist watering until new growth resumes in early autumn.
Why is my neli's tongue plant aphids on flower buds?
Aphids sometimes cluster on emerging flower stems in autumn. Knock off with a fine jet of water or dab with neem oil solution. Treat promptly before they spread to neighbouring plants.