(Malva sylvestris) These mini hollyhocks are a color variation of Zebrina Malva and are considered the same species. Originally carried around the world as a garden flower by the Romans, Malvas have been grown in gardens for centuries. Flower covered stalks will bloom all summer and will attract and feed hummingbirds and bees, Reseed profusely! 3-4 feet. Full sun. Biennial (full blooms the second year and from then on). 25+ seeds.