Botanical name: Uvularia grandiflora
Common name: Large-flowered Bellwort
Family: Colchicaceae (Formerly:Uvulariaceae / Liliaceae)
Origin: USA
USDA Plant Hardiness Zone Map
A little-known plant, perfect for a shady border. Appears in mid-spring, in time to hide dying daffodil foliage. The leaves are a nice bright yellow-green. The pendulous blooms are borne amongst bright green, lanced foliage.
Link to this plant:
https://toptropicals.com/catalog/uid/uvularia_grandiflora.htm