25 Datura Wrightii Seeds / Ga-3 Treated / Better Germination Rate 25 of the highest quality Datura Wrightii seeds. The flowers are the most striking feature, sweet fragrant white trumpets up to 8" long, often tinted purple, especially at the margin. There are 5 narrow points spaced symmetrically around the rim. In clear weather, flowers open at nearly full dark and wither a few hours after sunrise the following morning; in cloudy weather, they may open earlier and last longer. It is a vigorous herbaceous perennial that grows 30 cm to 1.5 m tall and wide. The leaves are broad and rounded at the base, tapering to a point, often with wavy margins. P They are treated with GA-3 for an outstanding germination rate!