Callirhoe involucrata Purple Poppy Mallow Description This prairie native has bright magenta cup-shaped flowers with trailing habit. Easy to grow and perfect for sunny dry sites. Blooms forever! Well, from late spring until fall, anyway. Winds its way through your garden. Sizes & Prices All Purple Poppy Mallow Characteristics Hardiness Zone: 3-6 Light requirements: Sun Height: 6" Native: Yes Sizes & Prices Size: 2 Yr $13.98 Other Information Purple Poppy Mallow Callirhoe involucrata Zone: 3-6 Sun HT: 6"