Troubleshooting
Silver Mound Artemisia problems — and how to fix them
Silver Mound Artemisia (Artemisia schmidtiana 'Nana') 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.
Splitting open at the centre
The signature problem: the mound flops apart, leaving a bare middle, especially in rich or moist soil. Shear back hard after the first flush to force a fresh, tight cushion.
Crown rot in wet or humid sites
Centre browns and rots in poor drainage or humid air. Plant in lean, sharply drained soil with full sun and airflow, and never overwater.
Floppiness from over-feeding
Fertile soil and feeding cause loose, sprawling growth. Grow it hungry in poor ground and skip fertiliser to keep it compact.
Decline in heat and humidity
It struggles in hot, muggy summers, melting out in the centre. Ensure maximum drainage and ventilation, and shear to rejuvenate after a bad spell.
Prevent silver mound artemisia problems before they start
Most silver mound artemisia issues are care-mismatch, not bad luck. Dial in the basics:
Looking for silver mound artemisia in general rather than its problems? Read the full silver mound artemisia care guide — light, water, soil and feeding.
Silver Mound Artemisia problems — FAQ
Why is my silver mound artemisia splitting open at the centre?
The signature problem: the mound flops apart, leaving a bare middle, especially in rich or moist soil. Shear back hard after the first flush to force a fresh, tight cushion.
Why is my silver mound artemisia crown rot in wet or humid sites?
Centre browns and rots in poor drainage or humid air. Plant in lean, sharply drained soil with full sun and airflow, and never overwater.
Why is my silver mound artemisia floppiness from over-feeding?
Fertile soil and feeding cause loose, sprawling growth. Grow it hungry in poor ground and skip fertiliser to keep it compact.
Why is my silver mound artemisia decline in heat and humidity?
It struggles in hot, muggy summers, melting out in the centre. Ensure maximum drainage and ventilation, and shear to rejuvenate after a bad spell.