Nymphaea Purple Joy is a day blooming water lily. This water lily boats vibrant green viviparous leaves. This water lily flowers can span as wide as 4-5 inches across. The petals of the flower are white with contrasting purple tips surrounding a bouquet of golden stamens. The flowers typically last 3-4 days, and like most day bloomers, they open in the morning and close in the evening and bloom best during the summer and fall months. The purple joy grows best in medium to large ponds and do best in full sun.