Quick answer: Smooth Solomon's seal (Polygonatum biflorum) is native to 34 states. What's commonly sold under this name is the true wild species. It's typically rhizome, verified 15 Sep 2026.
Photo: Eric Hunt, Wikimedia Commons (CC BY-SA 4.0)
Where it's native
Listed in the directory as native to these states. Click a state for its full native-plant guide.
Growing conditions
From the Lady Bird Johnson Wildflower Center Native Plant Database.
| Sun | Part Shade, Shade |
|---|---|
| Water | Medium water, Dry-Moist |
| Soil | Moist, rich, acid soils, also calcareous - sandy loam, medium loam, clay loam |
| Bloom | Bloom Mar-Jun |
| Height | Up to 2 ft, occasionally 3 ft |
| Wildlife value | Roots eaten by mammals, fruits attract birds, attracts butterflies |
Berries poisonous, low toxicity if ingested. Symptoms: vomiting, diarrhea. Toxic principle: anthraquinone
Buying it
Sold true to the wild species as of the last check (15 Sep 2026), via Amazon.
Sold as: Rhizome via Amazon · listing verified 15 Sep 2026
See where to buy →Quick answers about Smooth Solomon's seal
Where is Smooth Solomon's seal native?
Smooth Solomon's seal (Polygonatum biflorum) is native to 34 states across the Northeast, Midwest and South. Check your state's page in this directory for the full list of plants native where you live.
When does Smooth Solomon's seal bloom?
Smooth Solomon's seal blooms Mar-Jun. Exact timing shifts a few weeks with latitude and elevation.
What growing conditions does Smooth Solomon's seal need?
Light: Part Shade, Shade. Water: Medium water, Dry-Moist. Soil: Moist, rich, acid soils, also calcareous - sandy loam, medium loam, clay loam. Mature height: Up to 2 ft, occasionally 3 ft.
Is Smooth Solomon's seal good for pollinators and wildlife?
Yes. Wildlife value: Roots eaten by mammals, fruits attract birds, attracts butterflies.
Is Smooth Solomon's seal deer-resistant or drought-tolerant?
Smooth Solomon's seal is drought-tolerant and tolerates shade.
Is Smooth Solomon's seal toxic?
Berries poisonous, low toxicity if ingested. Symptoms: vomiting, diarrhea. Toxic principle: anthraquinone.
Where can I buy real Smooth Solomon's seal seed or plants?
We found a listing sold as rhizome that names the true species, last checked 15 Sep 2026. Look for the scientific name Polygonatum biflorum on any listing.
Similar native plants
Native plants that share growing conditions or range with Smooth Solomon's seal.
- Eastern red columbine Aquilegia canadensis
- Great blue lobelia Lobelia siphilitica
- Common evening primrose Oenothera biennis
- Coralberry Symphoricarpos orbiculatus
- Fragrant sumac Rhus aromatica
- Climbing prairie rose Rosa setigera
Also listed under
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