1 litre sized pot. Dierama pulcherrimum Snowbells produces milky white flowers in summer that dangle from tall arching long stems reaching 1 - 1.3m.  Grass like grey green leaves form a clump.  These plants are seed grown so there maybe variations in colour with some palest pink showing through.  Dierama likes a well-drained soil in a sunny position.  Wonderful to watch their stems dancing in the breeze.