Polygonatum canaliculatum is a rhizomatous species in the genus Polygonatum valued in cultivation. It flowers from April to June. The plant produces red or black berries after flowering; these berries are poisonous to humans. The genus name refers to the many-jointed underground rhizome.

Solomon's Seal (Polygonatum canaliculatum) flowers April to June and produces red or black berries that are poisonous to humans.

Polygonatum, also known as King Solomon's-seal, Solomon's seal, or sealwort, is a genus of flowering plants. In the APG III classification system, it is placed in the family Asparagaceae, subfamily Convallarioideae.

Polygonatum canaliculatum

Solomon's Seal | Polygonatum canaliculatum

Polygonatum curvistylum is a species in the genus Polygonatum, placed in the family Asparagaceae. It flowers in the UK from April to June. The species sits within a group of spring-flowering Polygonatum taxa that are cultivated for seasonal interest. Availability and precise growing notes should be checked with specialist sources before planting.

Polygonatum curvistylum is a species of Polygonatum that flowers in the UK from April to June and is listed by specialist suppliers.

Polygonatum curvistylum

Polygonatum curvistylum | Spring-flowering Polygonatum

Polygonatum falcatum is a perennial in the genus Polygonatum, commonly called sickle-shaped Solomon's seal. It grows to about 0.6 m and flowers from April to June. Native to Japan and Korea, it suits shaded, woodland-style planting and performs as a ground cover. Wear gloves when handling since it is harmful if eaten and toxic to dogs.

Sickle-shaped Solomon's Seal (Polygonatum falcatum) is a shade-loving perennial that flowers April–June and reaches about 0.6 m.

Polygonatum falcatum

Sickle-shaped Solomon's seal | Polygonatum falcatum

Polygonatum falcatum 'Variegatum' is a variegated perennial Solomon's seal that forms neat clumps to about 0.6 m. It favours full shade and reliably flowers from April to June. The cultivar's patterned leaves make it useful as a shaded ground cover. It suits moist but well-drained soils of sandy, loamy or clay texture.

Solomon's Seal (Polygonatum falcatum 'Variegatum') is a variegated, shade-loving perennial for woodland gardens and ground cover, flowering April to June.

Polygonatum falcatum 'Variegatum'

Solomon's Seal | Polygonatum falcatum 'Variegatum'

Polygonatum latifolium is a perennial herbaceous plant notable for its broad leaves. It forms clumps in shaded, moist sites and flowers from April to June. Plant in loamy, well-drained soil that is neutral to slightly acidic and position in partial shade or shade on a north- or east-facing aspect. Hardy in the UK (H5) and best sited in a sheltered spot.

Broad-leaved Solomon's seal (Polygonatum latifolium) suits shaded, moist sites and flowers in the UK from April to June.

Polygonatum latifolium

Broad-leaved Solomon's seal | Polygonatum latifolium

Polygonatum multiflorum is a perennial ground cover for shaded sites, producing arching stems up to about 1.2 m. It will grow in sandy, loamy or clay soils that are moist but well drained. It flowers April to June. Wear gloves when handling: the plant is harmful if eaten and is toxic to dogs.

Common Solomon's seal (Polygonatum multiflorum) is a shade perennial for woodland and ground cover that flowers April to June.

https://en.wikipedia.org/wiki/Polygonatum_multiflorum

Polygonatum multiflorum

Common Solomon's seal | Polygonatum multiflorum

Polygonatum odoratum 'Flore Pleno' is a perennial in the genus Polygonatum valued for its fragrant spring flowers. It grows to about 0.9 m and performs best in full shade. Flowering occurs from April to June. It prefers sandy, loamy or clay soils that are moist but well-drained and is fully hardy (H7).

Solomon's Seal (Polygonatum odoratum 'Flore Pleno') is a fragrant shade perennial that flowers April to June and prefers moist, well-drained soils.

https://en.wikipedia.org/wiki/Polygonatum_odoratum

Polygonatum odoratum 'Flore Pleno'

Solomon's Seal | Polygonatum odoratum 'Flore Pleno'

Polygonatum × hybridum is a shade-tolerant perennial that produces spring flowers from April to June. It suits moist, well-drained loam, clay or sandy soils across a wide pH range. Often planted in borders or woodland settings, it is used as ground cover where partial shade or shade prevail. Harmful if eaten, so wear gloves and other protective equipment when handling and keep away from pets.

Garden Solomon's Seal (Polygonatum × hybridum) is a shade-tolerant perennial flowering from April to June and suited to moist, well-drained soils.

https://en.wikipedia.org/wiki/Polygonatum_%C3%97_hybridum

Polygonatum × hybridum

Garden Solomon's seal | Polygonatum × hybridum

Polygonatum × hybridum 'Flore Pleno' is a perennial Solomon's-seal selected for its double flowers rather than single bell-shaped blooms. It produces pairs of doubled floral structures on the stems and flowers in spring. It prefers shaded, sheltered sites with a consistently moist, humus-rich soil. In UK conditions it is classed as hardy (H5).

Double-flowered Solomon's Seal (Polygonatum × hybridum 'Flore Pleno') flowers April to June and suits sheltered, shaded sites in moist, humus-rich soil.

Polygonatum × hybridum 'Flore Pleno'

Double-flowered Solomon's Seal | Polygonatum × hybridum 'Flore Pleno'

Polygonatum × hybridum 'Variegatum' is a perennial Solomon's seal cultivar selected for its variegated foliage and spring flowering. It forms arching stems with alternate, variegated leaves and flowers in spring. Suits shaded, sheltered spots with moist, loamy soil of neutral to slightly acidic reaction. Hardy in most UK gardens (H5).

Variegated Solomon's Seal (Polygonatum × hybridum 'Variegatum') is a shade-loving perennial with variegated foliage that flowers April to June.