Tidal Wave grows and grows into a wonderful mass of flowers! Blooms measure 2 in/ Tidal Wave grows according to the space available. The closer the spacing the taller and more shrub like the plants grow, using each other as support. Spaced 12 in./30 cm. apart or more, Tidal Wave forms a mounded hedge. Grown in a restricted space with additional support like a fence or bush, plants grow upward like a vine. Spaced up to 24 in./60 cm. apart in the garden, Tidal Wave grows like a ground cover, spreading 3 to 4 ft. (75 to 120 cm). Seeds are pelleted. Packet contains 10 seeds.