Seeds from this Commelian graminifolia Spiderwort. These plants grow to 18 inches and are drought resistant perennial for zones 6 and above. The plants when covered with masses of these 1 inch flowers, show wonderfully if planted in mass. They can fill in a dry and sunny area in no time at all. They are in blossom from April thru October with almost continuous blooms. Zones 9-11