Pancratium maritimum, or sea daffodil, is a species of bulbous plant native to the Mediterranean region and south-western Europe. That plant can also be seen on the south Bulgarian and north Turkish coasts of Black Sea, where it is threatened with extinction. It grows on coastal sands or just above the high tide mark. It is a bulbous perennial with a long neck and glaucous, broadly linear leaves, evergreen, but the leaves often die back during hot summers. The flowers have a pleasing, exotic and very subtle lily scent, which only becomes apparent during still, windless summer nights that allow the delicate fragrance to become perceptible. Flowering is from August to October. The plant is pollinated by a hawk-moth named Agrius convolvuli (which unfortunately I have never seen).