Named for the dark blue, bead-like berries that follow its modest spring flowers, Clintonia borealis is firmly a plant of the north — spruce-fir forests, cool mountain slopes, and the shaded ravines of the northeastern United States and Canada. The genus honors DeWitt Clinton, governor of New York in the early nineteenth century, and the species name borealis says the rest: this is not a plant for warm climates. It declines noticeably when temperatures climb above 75 degrees Fahrenheit and simply will not persist where summers are long and hot.

In the right conditions, it earns its place. Two to four broad, curved leaves emerge low to the ground, followed by a stem rising to roughly 20 inches topped with small yellow flowers that attract bees and pollinators. The berries that follow are a deep indigo-blue and last well into autumn, providing food for birds. Spread comes slowly by underground rhizomes, but with time the plant knits together into a colony that makes a handsome groundcover beneath conifers and hardwoods in organically rich, consistently moist, acidic soil.