Nymphaea “Pamela” Day blooming non-viviparous. 1931. Will over winter in zones 9 to 11. Plants size is medium-large. Flower is a semi-double star shape blue, 5” to 10” across. Leaves are very mottle 6“ to 12“ across. Has about a 3’ to 8’ spread. Best to grow in 6” to 18” of water. Flowers are very fragrant and stand well above the waters surface. You can grow this one in a one, two or three gallon container. Good for earthen ponds as well. This is one of my favorite blue tropical water lilies, because of the beauty of the flower and fragrance. Plus has some of the most awesome looking mottled leaves there is. Will tolerate shade especially in hotter climates. Best to grow in full sun.