What's eating my krossa regal hosta?

Krossa Regal Hosta is a tall, vase-shaped cultivar whose blue-grey leaves attract slugs, deer, and rabbits. Its upright form can make deer browsing especially damaging as they remove the display leaves from the center. Vine weevil adults notch the substantial leaf margins. Slugs remain the most common and consistent threat.

Irregular holes through the large blue-grey leaf blades; emerging spikes are targeted before they fully unfurl Iron phosphate pellets applied generously around the vase-shaped crown; remove mulch near the base to reduce slug refuges; hand-pick after dark

Center leaves and flower scapes removed; the vase shape means grazing disrupts the entire ornamental form Tall deer fencing or repeat applications of egg-based spray repellents; motion-activated water sprinklers work well for persistent deer

Scalloped notches on leaf margins; root grub infestations collapse the crown in late summer or autumn Apply Steinernema kraussei nematodes to moist, warm soil in late summer; check crown and roots when dividing