Light yellow flowers are borne on tall, sturdy spikes, opening in the afternoon and closed by morning. Great for summer colour in meadows, roadsides, fences & difficult areas. Prefers well drained soils. An aggressive, tough plant & prolific seeder. H80-120 cm. Biennial / Perennial - Plant in: Full Sun. Dry. -Flowers In:Summer-Autumn. 1900 sds/gm.