Plant library · Perennial Flowers
Polygonatum odoratum
Solomon’s seal brings a graceful vertical rhythm to full-shade planting, with arching stems and dangling white bells from late spring into early summer. At about 2½ feet tall, it gives a woodland bed more lift than a low groundcover while retaining a light, layered outline. It is a perennial for USDA Zones 3 through 8 and can gradually broaden its presence where soil remains rich and evenly supplied with moisture.
Use Solomon’s seal in the sheltered interior or front half of a shade border, where its curved stems can be seen against darker foliage or a quiet backdrop. It also suits the root-zone edge of shrubs, provided the planting area is not needed for frequent digging or seasonal turnover. Keep its crown set back from paths and paving so the arching stems have room to lean outward without narrowing circulation. A repeating drift gives the strongest woodland effect.[1][2]
Plant on 18-inch centers for a connected planting that can read as one low colony over time. Each plant is about 1½ feet wide at maturity, so this spacing allows neighboring clumps to meet without relying on a wide bare gap. In a narrow bed, reserve a band at least 18 inches deep from the path edge to prevent the foliage from spilling into the walking line. Allow more open ground around newly planted groups for access while they establish.
Give this perennial full shade and moderate water, using a bed that does not dry quickly after rainfall or irrigation. Humus-rich, moist but well-drained soil supports the steady growth needed for a lasting colony. In a mixed shade border, place it where taller shrubs or structures keep the root zone cool and where routine watering can reach it without soaking the crown.[1][2]
The white bells appear beneath the arching stems in late spring to early summer, so position the plant where it can be viewed from slightly below or across the bed rather than only from above. Its stems and leaves create the main planting mass through the growing season. As a deciduous perennial, it clears its above-ground space after the season; cut stems back at the base in late autumn and keep that area available for emerging shoots in spring.[1][2]
Slow rhizomatous spread is useful for filling a stable shade bed but makes Solomon’s seal a poor fit for spaces that are replanted often or edged tightly every season. Mark its position when the top growth is gone so dormant crowns are not disturbed during winter work. Avoid crowding the initial planting with fast-expanding neighbors; leave a clear route for division or cleanup at the back or side of the drift.[1][2]
Editorial content updated 2026-07-20.