Erythronium revolutum

Trout Lilies or dog tooth violets for their dog's-canine-shaped bulbs. Dormant in early summer so they aren't in the way, but they add another dimension under summer flowering shrubs with their joyful and exuberant late September display. Hot pink flowers, although relatively fleeting, are wonderful. The leaves are beautifully mottled when young and so add much to a spring bulb garden. These erythroniums are the best choice for wetter soils in summer, the others are more inclined to rot. They still like good drainage though. This is easily provided by lots of humus and organic matter. 

When compared to E. dens-canis, E. revolutum is easier to grow and naturalise, it has yellow pollen (not purple). The very best and simply incredible display is in the Dandenongs, Victoria, at the home of Jane Tonkin. They get themselves deep in the soil there. It has inspired me to grow all my seed every year to have as many as I can in an area adjacent to my bulb meadow. They bulk up so well they easy to natuarlise. Despite what is said, I can dig them up when they appear and move them about, splitting clumps. A white form: White beauty is equally good at bulking.But is not able to be grown from seed and so I do not have any available. 

https://www.youtube.com/watch?v=nK7pqNhFilQ

Closeup: Francine Riez, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons