Troubleshooting
Roman Chamomile problems — and how to fix them
Roman Chamomile (Chamaemelum nobile) 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.
Rot in wet or heavy soil
The crown and roots rot in poorly drained, waterlogged ground. Plant in light, gritty, free-draining soil and avoid overwatering, especially through winter.
Bare, dying patches in lawns
Chamomile lawns thin out under heavy traffic or in shade. Restrict use to light foot traffic, keep it in full sun, and plug gaps with fresh divisions or plugs.
Leggy, sparse growth
Too much shade or over-rich soil makes plants open and floppy with few flowers. Grow in full sun and lean soil, and shear after flowering to keep mats dense.
Aphids and powdery mildew
Aphids cluster on soft new growth and mildew appears in still, humid conditions. Improve airflow, rinse off aphids, and avoid overhead watering.
Prevent roman chamomile problems before they start
Most roman chamomile issues are care-mismatch, not bad luck. Dial in the basics:
Looking for roman chamomile in general rather than its problems? Read the full roman chamomile care guide — light, water, soil and feeding.
Roman Chamomile problems — FAQ
Why is my roman chamomile rot in wet or heavy soil?
The crown and roots rot in poorly drained, waterlogged ground. Plant in light, gritty, free-draining soil and avoid overwatering, especially through winter.
Why is my roman chamomile bare, dying patches in lawns?
Chamomile lawns thin out under heavy traffic or in shade. Restrict use to light foot traffic, keep it in full sun, and plug gaps with fresh divisions or plugs.
Why is my roman chamomile leggy, sparse growth?
Too much shade or over-rich soil makes plants open and floppy with few flowers. Grow in full sun and lean soil, and shear after flowering to keep mats dense.
Why is my roman chamomile aphids and powdery mildew?
Aphids cluster on soft new growth and mildew appears in still, humid conditions. Improve airflow, rinse off aphids, and avoid overhead watering.