What's eating my marmalade heuchera?

Marmalade Heuchera is most vulnerable to vine weevil, both the root-eating larvae and the leaf-notching adults. This is the number-one killer of heucheras in UK and US gardens. Aphids may colonize flower stems in spring. Apply nematode soil drenches in late summer and inspect roots whenever you divide the plant.

Scalloped notches on leaf edges; larvae eat roots causing sudden plant collapse in summer or autumn Nematode drench (Steinernema kraussei) in late summer; inspect roots; replace badly affected plants

Soft colonies on flower stems and new leaves; honeydew and sooty mould follow Remove by hand or water blast; apply neem oil or insecticidal soap if heavy infestation

Irregular holes in lower leaves, slime trails on crown and surrounding soil Iron phosphate pellets; remove nearby garden debris; hand-pick on damp evenings