Troubleshooting
Can Can Heuchera problems — and how to fix them
Can Can Heuchera (Heuchera 'Can Can') 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
From overly wet or deep planting. Provide sharp drainage and keep the crown level with or above the soil surface.
Frost heave
Winter freeze-thaw lifts the woody crown out of the soil; firm plants back in spring and mulch to protect roots.
Vine weevil
Root-feeding larvae cause unexpected collapse, especially in pots; apply nematodes or replace soil if grubs are present.
Leaf scorch
Crisped, browned ruffles indicate too much direct sun or dry soil; relocate to part shade and keep soil evenly moist.
Prevent can can heuchera problems before they start
Most can can heuchera issues are care-mismatch, not bad luck. Dial in the basics:
Looking for can can heuchera in general rather than its problems? Read the full can can heuchera care guide — light, water, soil and feeding.
Can Can Heuchera problems — FAQ
Why is my can can heuchera crown rot?
From overly wet or deep planting. Provide sharp drainage and keep the crown level with or above the soil surface.
Why is my can can heuchera frost heave?
Winter freeze-thaw lifts the woody crown out of the soil; firm plants back in spring and mulch to protect roots.
Why is my can can heuchera vine weevil?
Root-feeding larvae cause unexpected collapse, especially in pots; apply nematodes or replace soil if grubs are present.
Why is my can can heuchera leaf scorch?
Crisped, browned ruffles indicate too much direct sun or dry soil; relocate to part shade and keep soil evenly moist.