Four O’Clock, Wunderblume, Belle de Nuit In our Marbles series we offer three different varieties, all with striped, bicoloured flowers. Available as separate colours or as a mixture. The fragrant flowers open late afternoon and continue flowering till the next morning, even longer on cloudy days. The setting in the garden is crucial for enjoying the perfume in your evening chair. Ideal for high borders and when given space they develop an attractive rounded plant with many flowers on top of it.