Heuchera 'Midnight Rose' problems — and how to fix them

Wet soil at the crown, especially in winter, quickly leads to rotting; always plant with excellent drainage and crown at or slightly above soil level.

Root-feeding grubs cause sudden plant collapse; treat with nematodes (Steinernema kraussei) applied to moist soil in late summer.

Angular brown patches following leaf veins; destroy affected foliage and avoid overhead watering as a preventive measure.

White powder on leaf surfaces during warm, dry spells; improve airflow and apply a potassium bicarbonate spray at first sign.

Frost can push shallow crowns out of the soil; press back into place after thaws and protect with a light gravel mulch around the base.