Datura comes in both double and single forms. I don't know what type you have since I don't know what the parent plant looked like. Flowers are generally white, but there are also yellowish and pinkish forms available. Datura is a vigorous plant that will set seed and produce many babies in your garden next year. The plant itself is an annual and will die when frost hits. The entire plant is very beautiful and fragrant, but it IS poisonous so don't plant anywhere small children might sample it.