Smooth Solomon's Seal
Polygonatum biflorum
Smooth Solomon's Seal is a perennial for groundcover, mid-border, suited to shade and partial shade and clay or loam, flowering Apr, May.
| Type | Perennial |
|---|---|
| Mature height | 90 cm |
| Spread | 45 cm |
| Aspect | shade and partial shade |
| Foliage | Deciduous |
| Hardiness | USDA 3a-8b |
| Pollinator-friendly | Yes |
| Pet-safe | No |
Where to use it in a border
At around 90 cm, it sits best along the front edge, where a low, spreading habit reads best. Give it about 45 cm of room to spread, roughly 2 to the metre when planted in a drift. It is hardy across USDA zones 3a to 8b, so check it suits your area before planting.
It appears in our lists of shade, clay soil, pollinator-friendly plants.
Border Builder uses Smooth Solomon's Seal's height, spread, soil, bloom months and companions to place it in a full border plan for your own conditions, on iPhone and iPad.
Flowering through the year
Worth knowing
- It tolerates a shaded, north-facing spot.
- Not recorded as pet-safe; site it away from pets that graze if that matters to you.
- Its flowers are valued by bees and other pollinators.
Good companions
Plants that share its conditions and style, chosen to complement its place in the border:
- Allegheny Spurgeto edge in front
- Alumroot 'Palace Purple'to edge in front
- Black Cohoshfor height behind it
- Bloodrootto edge in front
- Cherokee Sedgeto edge in front
- Cinnamon Fernto flower when it does not
Garden styles
Sources
Bloom timing and hardiness drawn from: