Several years ago my friends Paul and Stacie gave me one leaf that was to be eventually a beautiful night blooming cereus...I took some patience but eventually it did bloom...this plant blooms once a year ( at least for me, without greenhouse conditions) and each bloom starts to bloom at dusk and will fully open within hours as you witness it until it is fully open. By morning the flower is closed and done for the year. The full size of the blooms was about 8 inches. The fragrance unlike any other...I wish you could come and sit on my porche and witness it...until then, I am sharing some pictures....Isn't it incredible?