Helen Campbell' is a well-known pure white variety.
Cleomes bring an exotic, vertical note to the border.
Contrary to general belief they are not too difficult to grow in home gardens. For midsummer flowering the plants have to be started indoors in April or early May and grown on in 10-12 cm pots without check to the growth. Young plants often start flowering in pots and cutting the first raceme will promote side branching. They are best planted in small groups in the border or on the lawn, but, if you have the space, they look spectacular massed in the background or used as a hedge. The long spidery stamens protrude from the flowers and make them look like delicate butterflies in flight.