The crinum species is a large family of flowering bulbs that look similar to daylilies albeit larger and more tropical. They are actually closely related to amaryllis, and can grow very well in locations that amaryllis succeed in. Like many bushy non-natives, they do better in part sun rather than full, unless you intend to supplementally irrigate.
Unfortunately this flowering beauty is not edible and cannot be used as forage for livestock, as it grows so well here in barely amended sand. None of the amaryllis family are edible.
A thin layer of mulch does benefit the plant, and it will, in time, produce young bulbs that you can transfer elsewhere or give away to your friends.