Fruit Flies on Hibiscus: Source and Solution

The Real Source: The Pot, Not the Plant

Fruit flies swarming a hibiscus indoors are almost certainly breeding in the potting soil. They're attracted to lights and bite—annoying and unsanitary.

Step-by-Step Fix

1. Take the hibiscus outside.
2. Repot completely with fresh, sterile potting mix—this eliminates the larvae.
3. Spray the indoor area with a flying-insect aerosol or fogger to kill remaining adults.

Prevention

Use well-draining soil, avoid overwatering, and let the top inch dry between waterings. Fungus gnats and fruit flies thrive in constantly moist soil.