What's eating my brunnera macrophylla 'looking glass'?

'Looking Glass' brunnera has intensely silver leaves with minimal green margin. Slugs and snails are the primary threat to the striking foliage. Vine weevil grubs attack roots in pots. Aphids may visit the spring flowers. Deer occasionally browse this plant, though it generally recovers well if the crown is undamaged.

Irregular holes and tattered edges on the large, ornamental silver leaves; worst in spring in damp, shaded sites. Iron phosphate pellets around crowns; sharp grit mulch; copper tape on pots; hand-pick at night.

Root destruction by white grubs leads to wilting despite adequate watering; plants in pots are at highest risk. Use nematode treatment (Steinernema kraussei) in late summer; check pot root balls when repotting.

Colonies on blue flower scapes cause sticky residue and may reduce flower quality. Squash by hand or spray with insecticidal soap solution; allow natural predators to control numbers.