Smooth Solomon’s Seal

Polygonatum biflorum
Solomon Seal (polygonatum commutatum)
Solomon Seal (polygonatum commutatum)
Plant TypeFlowering Perennials
Sun ExposurePart Sun / Shade (3-6 Hrs), Shade (0-3 Hrs)
HeightShort (1-3')
MoistureDry, Medium
Bloom MonthsMay, June, July
Moisture NeedsNormal
Season of InterestSpring (Mar-May), Summer (Jun-Aug)
Ecological SignificanceNative Bee Friendly, Butterfly Friendly

Description

Solomon’s Seal is an elegant native woodland perennial known for its graceful, arching stems and pendant, bell-shaped flowers. In late spring, clusters of creamy white blooms dangle delicately beneath the smooth, arching stems, giving the plant a refined and timeless appearance. The lush, green, lance-shaped leaves are arranged alternately along the stems, creating soft, layered foliage that adds structure and movement to shaded landscapes. By late summer, the flowers give way to small blue-black berries that add seasonal interest and provide food for wildlife. With its quiet beauty and rhythmic form, Solomon’s Seal is a woodland classic that brings grace and balance to natural plantings.

Ecological Value

Polygonatum biflorum provides nectar and pollen for native bees, including bumblebees, which are among its primary pollinators. The berries that form later in the season are eaten by songbirds such as thrushes and catbirds, which help disperse its seeds. Its dense root system stabilizes soil on shaded slopes and contributes to the overall health of woodland ecosystems. The arching stems also offer shelter and structure for ground-dwelling insects and small forest fauna. By flowering in the transition between spring and summer, Solomon’s Seal supports pollinators when few other woodland plants are in bloom.

Ideal Growing Conditions

Solomon’s Seal thrives in partial to full shade and moist, rich, well-drained soils high in organic matter. It naturally occurs in deciduous forests, shaded slopes, and stream valleys where leaf litter accumulates. It prefers evenly moist soil but tolerates short dry periods once established. The plant spreads slowly by rhizomes, forming graceful colonies that return reliably each year without becoming aggressive. It benefits from natural woodland conditions—cool, shaded, and rich in decomposing organic matter that maintains soil health and moisture.

Landscape Uses

Ideal for woodland gardens, shaded borders, and naturalized plantings, Solomon’s Seal brings height, rhythm, and texture to the shade garden. It pairs beautifully with Wild Geranium, Mayapple, and Ferns for a layered, lush woodland display. The combination of arching stems, hanging flowers, and graceful foliage makes it a standout plant in both natural and designed shade compositions. Long-lived, low-maintenance, and ecologically valuable, Solomon’s Seal is a cornerstone species for woodland plantings that emphasize beauty, biodiversity, and balance.

Smooth Solomon’s Seal Native Range

Map Color Key

Species present in state and nativeSpecies present and not rare
Species not present in stateSpecies present and rare

Kartesz, J.T., The Biota of North America Program (BONAP). 2015. North American Plant Atlas. (http://bonap.net/napa). Chapel Hill, N.C. [maps generated from Kartesz, J.T. 2015. Floristic Synthesis of North America, Version 1.0. Biota of North America Program (BONAP). (in press)].

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