Around here these are called Surprise Lilies. They might have a different name in other parts of the world. They come up in the spring but after a few weeks the foliage dies back without blooming. Then in August straight, leafless stems come up and these lovely pink blooms appear seemingly overnight. If they are growing with other plants they might go unnoticed until they bloom, thus the surprise.
This year though, I was watching for them so I was not surprised. They are the only flowers I have blooming and I’ve seen them in other yards where they are the only blooms – the only garden plants to survive both last winter’s record cold and this summer’s heat wave.