Wallflower 'Bowless Mauve'
Erysimum cheiri 'Bowles's Mauve' is a bushy, evergreen perennial producing a profusion of rich mauve, four-petalled flowers on tall stems for many months.
Sun: Full Sun.
Soil: Sandy.
Hardiness: H4 — down to −10°C.
Flowering: May, June, July.