Native from NW Florida across to SE Texas along the Gulf, String Lilies Crinum americanum are another of the 'hurricane lily' flowers, blooming when ample rains come our way.
They send out stolons causing new plants to appear unexpectedly.
So far we've seen Milk and Wine crinums, pale pink, dark pink and now the string lily. The fragrant Jagus crinum, pure white and smelling of vanilla is yet to bloom. The big clump that always blooms just hasn't yet decided this year it is ready. A clump of Jagus that He-who-mows ran over two years ago has not recovered. I gave it compost, water and everything. Maybe the mower took off the growing points.
Cameron asked recently how long before they bloom after planting. I've seen some bloom the next year. Some that I planted too deep never bloomed until years later when I dug and replanted with their necks sticking out of the ground.