Troubleshooting
Heuchera 'Sparkling Burgundy' problems — and how to fix them
Heuchera 'Sparkling Burgundy' (Heuchera 'Sparkling Burgundy') 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.
Crown rot
Waterlogged soil causes crown and root decay; ensure excellent drainage and avoid planting too deeply.
Vine weevil
Larvae damage roots causing plant collapse; apply nematode treatments in late summer.
Powdery mildew
White fungal coating on leaves in dry conditions with poor airflow; improve ventilation and treat with fungicide.
Frost heave
Shallow roots can be lifted by hard frosts; firm plants back in and mulch around the crown.
Spider mites
In hot, dry conditions fine webbing may appear; increase humidity and use insecticidal soap if needed.
Prevent heuchera 'sparkling burgundy' problems before they start
Most heuchera 'sparkling burgundy' issues are care-mismatch, not bad luck. Dial in the basics:
Heuchera 'Sparkling Burgundy' problems — FAQ
Why is my heuchera 'sparkling burgundy' crown rot?
Waterlogged soil causes crown and root decay; ensure excellent drainage and avoid planting too deeply.
Why is my heuchera 'sparkling burgundy' vine weevil?
Larvae damage roots causing plant collapse; apply nematode treatments in late summer.
Why is my heuchera 'sparkling burgundy' powdery mildew?
White fungal coating on leaves in dry conditions with poor airflow; improve ventilation and treat with fungicide.
Why is my heuchera 'sparkling burgundy' frost heave?
Shallow roots can be lifted by hard frosts; firm plants back in and mulch around the crown.
Why is my heuchera 'sparkling burgundy' spider mites?
In hot, dry conditions fine webbing may appear; increase humidity and use insecticidal soap if needed.