Dear Alberto and all, Alberto, you mentioned that your M. longiflora had yellow flowers and that had always made you wonder if it was really the species. I thought there was a bed of them in several colors up near the house at Monticello when I was there last year. I know Monticello sometimes sells seed. Dr. William C. Welch of Texas A&M arranged some years ago for a student to collect seed of this plant for the folks at Monticello. I'll ask if the original material had only white blooms. Cynthia W. Mueller College Station, Tx Zone 8b-9