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Polygonatum biflorum (Smooth Solomon's Seal)

Polygonatum biflorum (Smooth Solomon's Seal)

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Regular price $ 6.67
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Pure Live Seed

Seed is provided in Pure Live Seed (PLS) unless otherwise stated.

Pure Live Seed (PLS) expresses the viable seed content of a seed lot using its purity and germination or viability test results. It helps you compare seed lots and calculate how much bulk seed is needed to meet a specified PLS planting rate.

PLS weight and bag weight

PLS weight is not the same as the total weight of seed in a bag. For example, a lot with 80% purity and 75% viability contains 60% PLS: 80 × 75 ÷ 100 = 60. Supplying 10 lb PLS from that lot requires about 16.67 lb of bulk seed.

Use the current seed test and the stated basis of the mix specification. Germination calculations may include applicable hard or dormant seed. Seed-count estimates also require the number of seeds per pound; PLS alone does not provide a seed count.

What to check when buying a mix

Check whether each rate is stated in PLS pounds, bulk pounds, or a combination. A mix with both bases should not be described as having an all-PLS total.

PLS does not remove weed seeds or guarantee establishment. Review the seed label and analysis for weed content, and match site preparation, planting conditions and follow-up management to your project.

Sources: USDA NRCS, Understanding Pure Live Seed and The Importance of Seed Quality for Natural Resource Conservation.

Weight Conversions lbs. to oz.

0.01 pounds = 0.16 ounces

  • 0.1 pounds = 1.6 ounces
  • 0.25 pounds  = 4 ounces
  • 0.5 pounds = 8 ounces
  • 0.75 pounds = 12 ounces
  • 1.00 pounds = 16 ounces

Smooth Solomon's seal hides its pale, hanging flowers beneath the leaves. Look along the stem to find the small bells, a detail best appreciated at the edge of a shaded woodland planting.

Sun exposure for Polygonatum biflorum: partial shade; Shade. Soil conditions: medium to wet soil. Recorded habitats include woods. Reported height: 1 to 3 feet.

Growth habit: unbranched stems rise upright before arching over. Allow space for this growth between neighboring plants over several seasons, rather than spacing only for the size of a young plant.

Plant specifications

Key growing facts

Sunlight Partial shade; Shade
Soil moisture Medium to wet soil
Height 1 to 3 feet
Bloom season May–July (Minnesota observations)
Show / hide ▾Growing & planting details
Growth habit Unbranched stems rise upright before arching over
Root form Rhizomes
Cultivation hardiness zones Zones 3a–9b (general cultivation guidance)
Plant toxicity Poison characteristics are reported; listed parts: fruits. Pet safety is not established.

Plant identification & seed reference

Botanical name Polygonatum biflorum
Other common names smooth solomons seal; Great Solomon's Seal; Smooth Solomon's Seal; Solomon's Seal
Plant family Convallariaceae

Plant characteristics

An excellent texture plant for any woodland garden.  Bell-shaped greenish-white flowers (often in 2s) dangle from knee-high arching stems. Visited by hummingbirds and bumblebees. Stunning blue berries provide food for birds and small mammals in late summer.

  • Flower Color cream to green
  • Flower Time  May, June
  • Show / hide ▾Plant communities & associatesNo verified list yet

    A species-level list has not yet been verified for this listing.

    Show / hide ▾Native range & C-value

    State nativity describes a broad range. Use the Chicago-region assessment for local context; a state listing does not establish county nativity.

    Wetland indicator — NWPL 2022 Midwest FACU
    C-value — Chicago region, Flora 2017 4
    Chicago-region native — Flora 2017 Yes
    Native range — U.S. states Alabama; Arizona; Arkansas; Connecticut; Delaware; Florida; Georgia; Illinois; Indiana; Iowa; Kansas; Kentucky; Louisiana; Maine; Maryland; Massachusetts; Michigan; Minnesota; Mississippi; Missouri; Nebraska; New Hampshire; New Jersey; New Mexico; New York; North Carolina; North Dakota; Ohio; Oklahoma; Pennsylvania; Rhode Island; South Carolina; South Dakota; Tennessee; Texas; Vermont; Virginia; West Virginia; Wisconsin; Wyoming
    County nativity Not yet verified; occurrence records do not establish nativity.
    Show / hide ▾Pollinators & wildlifeNo verified list yet

    No additional named relationships have been verified for this listing.

    Show / hide ▾Frequently asked questions

    What are the ideal growing conditions for Smooth Solomon's Seal?
    Light: Partial shade; Shade. Soil moisture: Medium to wet soil.

    Is Smooth Solomon's Seal deer and herbivore resistant?
    Species-specific deer resistance has not been verified here. Even plants described as resistant may be browsed. Use physical protection where deer damage is a concern.

    When should I expect Smooth Solomon's Seal to bloom?
    Typical flowering period: May–July (Minnesota observations). Timing varies with location and weather.

    Show / hide ▾Sources & ecological notes

    Native range & ecological ratings: Flora of the Chicago Region (2017), via Universal FQA; USACE Chicago FQA (2017); Kew WCVP / Plants of the World Online; USACE National Wetland Plant List.

    Growing conditions & other references: Minnesota Wildflowers; NC State Extension Plant Toolbox.

    Native range does not identify the origin of the seed or plants offered. Community and wildlife records apply to the locations and conditions described.

    Research notes & credits

    USACE/ERDC fqadata — Chicago Region FQA 2017. Herman, B., Sliwinski, R. & Whitaker, S. (2017), Chicago Region FQA Calculator; distributed by USACE/ERDC in fqadata under CC0. Values may differ from Flora of the Chicago Region (2017). CC0 dedication. Retained for comparison; the displayed C-value follows Flora database 80.

    Range data: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew; 4 June 2026 release, accessed 7 September 2026. © The Trustees of the Royal Botanic Gardens, Kew. CC BY 3.0; selected and reformatted. Kew cannot warrant the quality or accuracy of these data. This use has no Kew endorsement.

    Flora rating attribution: Kenneth Johnson (2018), Flora of the Chicago Region UFQA Database, following Gerould Wilhelm and Laura Rericha (2017), Flora of the Chicago Region: A Floristic and Ecological Synthesis. Individual rating facts are presented with original commentary; the calculator’s software license is not treated as a license for the underlying Flora publication.

    Growing guidance: Illinois Extension — Keeping deer out of the yard and garden. Selected facts in original wording. General deer advice is not a species resistance rating.

    Seed Shipping & Care

    There is a minimum order requirement of $30 for each seed species. Seed ships all year and typically ships within a week of an order being placed.

    We have attempted to put together some basic information regarding native seed installation, establishment, and maintenance.  We hope you find it helpful.  If you need further assistance on native seed establishment, please schedule a free consolation call here.

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    Solving a Site Problem? Get Expert Advice + Get Store Credit

    Whether you're fighting severe erosion, replacing invasive species, designing a pollinator haven, or seeding large acreage, choosing the wrong species wastes time and money. Talk 1-on-1 with a restoration ecologist to map out the exact species, plug counts, or seed mixes for your soil and goals. Book a consultation and get all or a portion credited directly back to your order.

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