Troubleshooting
Ranunculus asiaticus 'Mache' problems — and how to fix them
Ranunculus asiaticus 'Mache' (Ranunculus asiaticus 'Mache') 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.
Corm rot
Soft, rotten corms from oversoaking or soggy soil. Soak only 3-4 hours, pre-sprout in barely moist medium, and plant in free-draining soil.
Botrytis (grey mould)
The very full blooms hold moisture and grey-mould in damp weather. Improve airflow, deadhead promptly, and harvest before flowers fully open.
Powdery mildew
White coating on foliage in warm, still, humid air. Space plants and keep leaves dry to limit spread.
Heat-triggered dormancy
Foliage yellows and dies back early once temperatures climb above the low 20s°C. Plant early for a cool growing window and shade from hot afternoon sun.
Prevent ranunculus asiaticus 'mache' problems before they start
Most ranunculus asiaticus 'mache' issues are care-mismatch, not bad luck. Dial in the basics:
- Common ranunculus asiaticus problems — the species this cultivar belongs to
- What's wrong with my plant? — the diagnosis apps compared
- Ranunculus asiaticus 'Mache' watering schedule
- Ranunculus asiaticus 'Mache' light requirements
- Best soil mix for ranunculus asiaticus 'mache'
- Ranunculus asiaticus 'Mache' temperature & humidity
- Full ranunculus asiaticus 'mache' care guide
Looking for the species overview? Ranunculus asiaticus — the full care guide.
Other Ranunculus asiaticus varieties
Ranunculus asiaticus 'Mache' problems — FAQ
Why is my ranunculus asiaticus 'mache' corm rot?
Soft, rotten corms from oversoaking or soggy soil. Soak only 3-4 hours, pre-sprout in barely moist medium, and plant in free-draining soil.
Why is my ranunculus asiaticus 'mache' botrytis (grey mould)?
The very full blooms hold moisture and grey-mould in damp weather. Improve airflow, deadhead promptly, and harvest before flowers fully open.
Why is my ranunculus asiaticus 'mache' powdery mildew?
White coating on foliage in warm, still, humid air. Space plants and keep leaves dry to limit spread.
Why is my ranunculus asiaticus 'mache' heat-triggered dormancy?
Foliage yellows and dies back early once temperatures climb above the low 20s°C. Plant early for a cool growing window and shade from hot afternoon sun.