Do they reseed themselves
Tiger Lily Flowers
No, they do not reseed but they can easily be divided if more plants are desired. Dig up the entire clump and use your hands to tease apart the clump. If it is an old plant, throw out the tubers from the center and replant the newer growth from the edges. This can be done in spring or fall. Even if you managed to grow one from seed, it would take years to reach bloom stage.