Disporum 'Night Heron' is a clump-forming, columnar upright perennial in the Colchicaceae, valued for its flowering from May to July. It carries deciduous foliage and performs best in partial shade on moist but well-drained soils. Plant in a sheltered spot and choose north-, east- or west-facing positions to suit its needs. It is rated H6, equivalent to very hardy in UK conditions.

Disporum 'Night Heron' is a clump-forming shade perennial with deciduous foliage that flowers from May to July.

Disporum 'Night Heron'

Fairy Bells | Disporum 'Night Heron'

Disporum pullum is a species in the genus Disporum, placed in the family Colchicaceae. It belongs to a group of roughly 20 perennial Asian species and flowers in the UK from May to July. Plants in the genus produce pendent, bell-like blooms on herbaceous stems. In cultivation it suits situations that show off its spring–summer flowering period.

Fairy Bells (Disporum pullum) is a Disporum species in the Colchicaceae that flowers in the UK from May to July.

Disporum is a genus of about 20 species of perennial flowering plants, found in Asia from northern India to Japan, south to Indonesia and north into the Russian Far East.

Disporum pullum

Fairy Bells | Disporum pullum

Disporum sessile is a perennial herb from Japan and Korea that grows to about 0.6 m. It flowers from May to July and prefers partial to full shade in sheltered sites. The plant does best in moist but well-drained sandy, loamy or clay soils of acidic to neutral pH. Use it as a low understorey or ground cover in woodland and shade gardens.

Sessile fairy bells (Disporum sessile) is a shade-loving perennial that flowers May to July and suits woodland and shade gardens.

Disporum sessile

Sessile fairy bells | Disporum sessile

Disporum sessile 'Variegatum' is a perennial in the Colchicaceae valued for its variegated foliage and compact habit. It reaches about 0.6 m and favours shady, sheltered positions. Flowering occurs from May to July. It performs best in moist but well-drained sandy, loamy or clay soils.

Disporum sessile 'Variegatum' is a variegated perennial reaching 0.6 m that flowers from May to July and suits shaded borders and woodland gardens.

Disporum sessile 'Variegatum'

Fairy Bells | Disporum sessile 'Variegatum'

Disporum smithii is a perennial herb in the Liliaceae, commonly called largeflower fairybells and native to western North America. It favours shady conditions and reliably flowers from May to July. Plants prefer moist, well-drained soils and are best placed where shade or partial shade is available.

Largeflower fairybells (Disporum smithii) suits shady, moist, well-drained sites and flowers from May to July.

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

Prosartes, the fairybells, is a North American genus of flowering plants in the lily family.