Scarlet Wisteria (Sesbania punicea) This offer is for a Packet of 10 Seeds Plant type: Flowering Shrub or Small Tree Hardiness: USDA Zones 8 to 11 or in a pot for indoor/outdoor use Size: Grows quickly up to 10 feet, Much smaller in pots Season: Blooms Spring, Summer, Fall Culture: Full sun to light shade and moist, humus rich soil. Regular water and frequent fertilizer. Takes well to pruning - Limbed up it makes an elegant small tree or topiary. Easily trimmed to any size. Remove seedpods for more blooms. Reaches blooming size in one summer. This attractive shrub or small tree is native to South America. Its beautiful, scarlet pea-like flowers are borne in dense drooping clusters that bloom in profusion in spring to early summer and then in flushes well into fall. In frost free zones it blooms year round. Hardy through zone 8 it makes an easy and attractive pot plant in colder zones. The ferny leaves look like Acacia or Mimosa and are attractive even when not in flower. This plant thrives in full sun and moist to wet soil where it will grow very quickly to 8 to 10 feet tall. A very easy but uncommon plant to grow, it is stunning in full bloom.