This is Dodecatheon amethystinum, also known as Amethyst shooting star. Looking at this flower, I cannot help but picture some sci-fi rocket shooting through the air. If you have a shady area in your garden where many plants will not grow, this would be a good choice for that area. This gorgeous flower grows to about 18 inches tall and does well in full sun all the way down to light shade. The backward pointing petals are pink or purple with white, yellow, and maroon stripes. This is a larval host plant for the Arctic Blue, and Sierra Nevada Blue butterflies. USDA Hardiness Zones 4 to 9.