PL. —Clintonia borealisBotanical illustration — drop image
Clintonia borealis

Bluebead Lily

SpringSummer
3a7bHardiness zone
Peak bloom windowZone 6b · frost-offset weeks
Winter
Not in bloom
Spring
Peak bloom
Summer
Not in bloom
Fall
Not in bloom
Peak bloom
In bloom
Background

Bluebead Lily is a low, shade-loving woodland perennial of northern hardwood and conifer forests, named for the strange, brilliant blue berries that follow its flowers — one of the few genuinely blue fruits in the eastern forest. Two or three broad, glossy basal leaves lie flat against the forest floor, and in late spring a single leafless stalk rises above them carrying a small nodding cluster of three to eight pale yellow, bell-shaped flowers.

It needs what it gets in the wild: deep to dappled shade, consistently moist, acidic, humus-rich soil, and cool root conditions under a canopy of hemlock, birch, or maple. It resents disturbance and is slow to establish — plants grown from seed can take several years to reach flowering size, so most gardeners start from nursery divisions or potted plants rather than seed. Once settled into the right spot it spreads slowly by rhizome into a long-lived colony and asks for almost nothing beyond an annual top-dressing of leaf litter.

The metallic, dusty-blue berries that follow the flowers in mid-to-late summer are mildly toxic if eaten in quantity and are best left for wildlife, though they're a striking feature to plant for on their own. Very young, unfurled leaves have occasionally been foraged as a mild, cucumber-flavored spring green, but correct identification is essential before eating any wild lily foliage.

Care guide
SunPart to full shade
WaterMoist, consistent
SoilAcidic, humus-rich, moist, well-drained
Spacing12–18 in
Height6–12 in
Zone3a – 7b
Native RegionCT, GA, IL, IN, ME, MD, MA, MI, MN, NH, NJ, NY, NC, OH, PA, RI, TN, VT, VA, WV, WI
Frost hardy
Seasonal tasks
spring
sowPlant divisions or potted plants in spring or fall, setting the crown at soil level in rich, acidic woodland soil under partial to full shade.
watchWatch for nodding yellow flower clusters on a single leafless stalk; avoid disturbing the shallow rhizome nearby.
summer
watchBerries ripen to a striking metallic blue in mid-to-late summer — mildly toxic if eaten in quantity, so keep curious pets and children from grazing on them.
watchAvoid working the soil nearby during the growing season; the plant is slow to recover from root disturbance.
fall
watchTop-dress with shredded leaves each fall to mimic natural leaf litter and keep roots cool and moist.
Common problems

Botrytis (grey mould)

Symptoms

Grey fuzzy mould on petals and stems, worst in cool wet conditions.

Treatment

Remove affected parts immediately. Improve air circulation. Avoid overhead watering. Apply copper fungicide if severe.

Crown Rot

Symptoms

Lower leaves yellow and wilt; the base of the rosette turns brown and soft, sometimes with white fungal threads at the soil line. Plants collapse in wet conditions.

Treatment

Remove and destroy affected plants. Improve drainage and avoid overhead watering. Do not mulch directly against the crown. Space plants for airflow and avoid replanting in the same wet spot.