Troubleshooting
Mona Lisa Lipstick Plant problems — and how to fix them
Mona Lisa Lipstick Plant (Aeschynanthus radicans 'Mona Lisa') 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.
Failure to flower
The most common complaint with Mona Lisa. Usually caused by insufficient light, over-watering, or overly warm nights. Ensure bright indirect light, allow a slight seasonal drop in temperature in autumn (15–17°C nights), and keep slightly pot-bound. A phosphorus-rich fertiliser boost in late winter also helps.
Leaf drop and yellowing
Sudden leaf drop is typically triggered by cold draughts, cold water, or temperature drops below 15°C. Yellow leaves often indicate overwatering or root rot. Check drainage, inspect roots, and relocate away from draughts or air-conditioning.
Leggy growth with sparse leaves
Results from insufficient light or not pruning after flowering. Trim stems back by up to one-third after each flowering flush to encourage bushy, branching growth and more bloom tips. New growth from the trimmed tips will carry the next flush of flowers.
Prevent mona lisa lipstick plant problems before they start
Most mona lisa lipstick plant issues are care-mismatch, not bad luck. Dial in the basics:
Mona Lisa Lipstick Plant problems — FAQ
Why is my mona lisa lipstick plant failure to flower?
The most common complaint with Mona Lisa. Usually caused by insufficient light, over-watering, or overly warm nights. Ensure bright indirect light, allow a slight seasonal drop in temperature in autumn (15–17°C nights), and keep slightly pot-bound. A phosphorus-rich fertiliser boost in late winter also helps.
Why is my mona lisa lipstick plant leaf drop and yellowing?
Sudden leaf drop is typically triggered by cold draughts, cold water, or temperature drops below 15°C. Yellow leaves often indicate overwatering or root rot. Check drainage, inspect roots, and relocate away from draughts or air-conditioning.
Why is my mona lisa lipstick plant leggy growth with sparse leaves?
Results from insufficient light or not pruning after flowering. Trim stems back by up to one-third after each flowering flush to encourage bushy, branching growth and more bloom tips. New growth from the trimmed tips will carry the next flush of flowers.