Native Plants

Smooth Solomon’s Seal

Polygonatum biflorum var. melleum

USDA symbol: POBIM

perennial forb

Canada: native
Lower 48 states: native

If you’re looking to add some understated elegance to your shady garden spots, let me introduce you to smooth Solomon’s seal (Polygonatum biflorum var. melleum). This charming native perennial might not be the showiest plant in the woodland garden, but it brings a quiet sophistication that’s hard to beat. Smooth ...

Smooth Solomon’s Seal may be listed as rare in your area.
Global Conservation Status

Status: S5THQ | Secure: At low or no risk of extinction in the area due to an extensive range, abundant populations, and with little to no concern of declines or threats.

Smooth Solomon’s Seal: A Graceful Native Woodland Wonder

If you’re looking to add some understated elegance to your shady garden spots, let me introduce you to smooth Solomon’s seal (Polygonatum biflorum var. melleum). This charming native perennial might not be the showiest plant in the woodland garden, but it brings a quiet sophistication that’s hard to beat.

What Makes This Plant Special?

Smooth Solomon’s seal is a native North American perennial that belongs to the forb family – essentially a non-woody plant that dies back to the ground each winter and returns faithfully each spring. This particular variety, var. melleum, represents a regional form that’s been documented primarily in Michigan and Ontario, making it a true regional treasure.

As a perennial, this plant is in it for the long haul, establishing itself in your garden and returning year after year with minimal fuss. It’s also known by the synonym Polygonatum melleum, though you’ll most commonly find it listed under its current botanical name.

Where Does It Call Home?

This variety of smooth Solomon’s seal is native to both Canada and the lower 48 United States, with documented populations in Ontario and Michigan. Its limited geographical distribution makes it particularly special for gardeners in these regions who want to showcase truly local native plants.

  • Species observed
  • No observations

Why Consider Growing Smooth Solomon’s Seal?

Here’s the thing about smooth Solomon’s seal – it’s not going to knock your socks off with flashy flowers or bold foliage, but that’s exactly what makes it so valuable. This plant excels at:

  • Providing gentle texture and form in woodland gardens
  • Filling in understory areas where few other plants thrive
  • Creating natural-looking plant communities
  • Supporting local ecosystems as a native species

Since this is a native plant with no known invasive or noxious tendencies, you can feel good about adding it to your landscape without worrying about it taking over or causing ecological harm.

The Growing Reality Check

I’ll be honest with you – specific growing information for this particular variety is quite limited in the available literature. What we do know is that it shares the basic characteristics of other Solomon’s seal varieties, typically preferring shaded woodland conditions.

As a forb, it lacks woody stems and has its growing points at or below ground level, which means it’s well-adapted to surviving harsh winters by retreating underground.

Garden Design Ideas

While specific design recommendations for var. melleum are limited, smooth Solomon’s seal varieties generally work wonderfully in:

  • Woodland gardens and natural areas
  • Shade borders and understory plantings
  • Native plant gardens focused on regional species
  • Low-maintenance naturalized areas

A Word of Caution (The Good Kind)

The limited documentation and specific regional distribution of this variety suggests it might be relatively uncommon. If you’re lucky enough to source this plant, make sure you’re getting it from reputable native plant nurseries that practice responsible propagation methods.

The Bottom Line

Polygonatum biflorum var. melleum represents one of those quiet garden gems that serious native plant enthusiasts appreciate. While it may not have the extensive growing guides that more common plants enjoy, its status as a native regional variety makes it worth seeking out if you’re in Michigan or Ontario and want to support truly local plant communities.

Just remember – sometimes the most rewarding garden plants are the ones that require a little detective work and patience to understand. If you’re drawn to the idea of growing something truly special and regionally significant, this smooth Solomon’s seal variety might be just the plant to add some local character to your shade garden.

Polygonatum biflorum var. melleum is also known as...

Often we refer to plants by their common names. When shopping for plants the scientific name is the best way to positively identify the plant species you desire. But some plants have more than one name! While it doesn't happen often, nurseries might display one name while you're searching for another. Polygonatum biflorum var. melleum is also known as:

Polygonatum melleum | USDA symbol: POME9

Why do some plants have more than one name? Over time plant species may be renamed for a few reasons:

  1. Botanists in different regions named the same plant without knowing it had already been classified.
  2. A species was reclassified after scientific advances in, for example, DNA analysis.
  3. Slight variations within a species are sometimes mistakenly identified as entirely new species.

Classification

Group: Monocot
Kingdom: Plantae - Plants
Subkingdom: Tracheobionta - Vascular plants
Superdivision: Spermatophyta - Seed plants
Division: Magnoliophyta - Flowering plants
Class: Liliopsida - Monocotyledons
Subclass: Liliidae
Order: Liliales
Family: Liliaceae Juss. - Lily family
Genus: Polygonatum Mill. - Solomon's seal

Species: Polygonatum biflorum (Walter) Elliott - smooth Solomon's seal

Variety: Polygonatum biflorum (Walter) Elliott var. melleum (Farw.) R. Ownbey - smooth Solomon's seal

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA