Some years ago we polled Hosta Societies for slug-resistant forms. 'Veronica Lake' popped up as one of the better-edged forms. A fabulous mutation that has twice-wide borders, super-thick leaves (& more slug-resistance), and a darker lavender flower with increased substance.
A very wide-edged sport of one of our favorite hostas, H. 'Veronica Lake'. This small, 18" wide clump x 8" tall, is composed of thick, heart-shaped blue-green leaves, bordered with a 1" wide, creamy border that emerges yellow in spring...probably a tetraploid. The eye-popping clumps are topped in midsummer with 15" spikes of lavender flowers.