Troubleshooting
Sweet Cicely problems — and how to fix them
Sweet Cicely (Myrrhis odorata) 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.
Prolific self-seeding
Drops large black seeds that germinate freely; deadhead after flowering if you want to limit spread through borders.
Taproot resents disturbance
The deep taproot makes mature plants hard to move or divide; site permanently and propagate from seed instead.
Leaf scorch in heat
Foliage browns and looks tatty in hot, dry, sunny spots; move to shade and keep the root zone mulched and moist.
Powdery mildew late season
Crowded, dry plants can develop mildew on aging leaves; improve airflow and cut back tired growth to encourage fresh foliage.
Prevent sweet cicely problems before they start
Most sweet cicely issues are care-mismatch, not bad luck. Dial in the basics:
Looking for sweet cicely in general rather than its problems? Read the full sweet cicely care guide — light, water, soil and feeding.
Sweet Cicely problems — FAQ
Why is my sweet cicely prolific self-seeding?
Drops large black seeds that germinate freely; deadhead after flowering if you want to limit spread through borders.
Why is my sweet cicely taproot resents disturbance?
The deep taproot makes mature plants hard to move or divide; site permanently and propagate from seed instead.
Why is my sweet cicely leaf scorch in heat?
Foliage browns and looks tatty in hot, dry, sunny spots; move to shade and keep the root zone mulched and moist.
Why is my sweet cicely powdery mildew late season?
Crowded, dry plants can develop mildew on aging leaves; improve airflow and cut back tired growth to encourage fresh foliage.