|Herbaceous and evergreen perennial or shrub. ..
This loosestrife has has alternate, opposite, or whorled, toothed and hairy green leaves and bears 5-petaled white, yellow, pink, or purple, flowers in star, saucer, cup-shape, growing in damp or moist soil that draines well and is humus rich. Sun or part shade suites most of the species. Divide in spring or fall.