Malva sylvestris These Magenta Purple Mallow Flowers are a Cottage Garden Favorite. They look striking against a Wall. Malva Grow 36 Tall. They are an Annual/Perennial (depending on zone) & prefer Full Sun. Organic Grown in Montana for Zones 3 to 8, -30 F to 90F. There are 20+ Seeds in each packet. Slightly cover seeds. Keep Seeds & Soil Moist during germination. May plant Seeds in the Fall, Spring or start indoors. Magenta Mallow Flower Seeds, Malva Sylvestris, Purple Rare Tall Seeds