The scarlet, long-tubed flowers are shaped for the ruby-throated hummingbird, and the Lady Bird Johnson Wildflower Center documents the plant as depending on hummingbirds for pollination because insects struggle with the long tubular flowers — making this a keystone late-summer hummingbird nectar source.
The Lady Bird Johnson Wildflower Center notes the white flowers are visited by hummingbirds.
Both Missouri Botanical Garden PlantFinder and the Lady Bird Johnson Wildflower Center list the tubular flowers as attracting hummingbirds.
NC State Extension Gardener Plant Toolbox lists bleeding heart among plants that attract hummingbirds; the nodding pendant spring flowers are a nectar source for the ruby-throated hummingbird.
The Missouri Botanical Garden PlantFinder lists the flowers as attractive to hummingbirds; the tubular purplish-blue blooms suit the ruby-throated hummingbird across this range.
The scarlet tubular flowers are a documented hummingbird nectar plant; the Lady Bird Johnson Wildflower Center notes the nectar supplies hummingbirds with food for the start of their southward migration. (Within Epilobium canum’s western range the regular visitors are western hummingbird species such as Anna’s and rufous; ruby-throated is the catalog’s hummingbird entity standing in for this hummingbird-nectar relationship.)
The tubular lavender-blue flowers are a plausible nectar source for ruby-throated hummingbirds, which visit many tubular mint-family flowers, though the published sources flag bees rather than hummingbirds specifically.
The NC State Extension Gardener Plant Toolbox lists Clematis x jackmanii as attracting hummingbirds.
Missouri Botanical Garden PlantFinder lists the showy, fragrant flowers of common lilac as attracting hummingbirds.
Missouri Botanical Garden PlantFinder lists Zinnia elegans as attracting hummingbirds; the bright, showy flowers are a common ruby-throated hummingbird nectar source in summer gardens.
The large, funnel-shaped, nectar-rich daylily flowers are a frequently documented nectar source for ruby-throated hummingbirds in eastern North American gardens.
The Lady Bird Johnson Wildflower Center documents that firecracker penstemon attracts hummingbirds; its narrow scarlet tubular flowers are a textbook hummingbird-pollination syndrome. (The ruby-throated hummingbird stands in here for the western hummingbirds — e.g. broad-tailed, black-chinned — that overlap this species' Intermountain West range; Plotwright's wildlife catalog does not yet carry those western species.)
NC State explicitly names hummingbirds among visitors; the long white tubular flowers suit the hummingbird hover-feed approach.
Missouri Botanical Garden PlantFinder lists Ribes aureum as attracting hummingbirds to its showy, fragrant, tubular yellow-orange spring flowers.
Missouri Botanical Garden PlantFinder lists Alcea rosea as attracting hummingbirds; the large funnel-shaped flowers offer accessible nectar through the June-August bloom.
NC State Extension Gardener Plant Toolbox lists Impatiens walleriana as attracting hummingbirds; the slender nectar spur suits a long-billed/long-tongued nectar feeder.
Tubular red flowers are a canonical hummingbird specialist plant.
Missouri Botanical Garden PlantFinder lists the showy flowers as attractive to hummingbirds — the long, tubular five-lobed florets are a classic hummingbird nectar source.
The NC State Extension Gardener Plant Toolbox flags Ipomoea tricolor as attracting hummingbirds; the deep nectar-bearing trumpets suit a long-billed nectar feeder.
NC State explicitly names hummingbirds among visitors; the cup-shaped flowers hold nectar that hummingbird tongues can access despite the species's primary bumblebee co-evolution.
Missouri Botanical Garden PlantFinder lists Tropaeolum majus flowers as attracting hummingbirds — the long nectar spur on each funnel-shaped bloom rewards long-tongued nectar feeders.
The Lady Bird Johnson Wildflower Center lists Agave parryi's flowers as a nectar source for hummingbirds. The tall, tubular yellow flower clusters are a classic hummingbird-pollinated agave inflorescence, though in this species' native Southwest the local hummingbird species differ from the eastern ruby-throated; flowering is rare (once per rosette).
NC State Extension Gardener Plant Toolbox lists the garden petunia’s flowers as providing nectar for hummingbirds; the deep funnel-shaped corolla suits the ruby-throated hummingbird’s long bill.
The NC State Extension Gardener Plant Toolbox lists Hibiscus syriacus as attracting hummingbirds; its large open nectar-bearing flowers are a documented summer nectar source.
The NC State Extension Gardener Plant Toolbox lists hummingbirds among the wildlife the flowers attract.
Missouri Botanical Garden PlantFinder lists snapdragon among the plants that attract hummingbirds; the tubular two-lipped flowers offer nectar to long-tongued visitors.
NC State explicitly names hummingbirds among the visitors; the upright flower spike with abundant individual florets provides a sustained nectar reward across the bloom window.
The cup-shaped flowers hold copious nectar at the petal base, well-suited to hummingbird feeding alongside the bee pollinator community.
NC State explicitly lists hummingbirds among the visitors; the pendulous bell shape suits the hummingbird hovering-feed approach.
NC State explicitly lists ruby-throated hummingbird among Monarda fistulosa visitors; the tubular pink flowers fit the species's flower-shape preference, even though wild bergamot is less hummingbird-specific than its red-flowered cousin M. didyma.
Both NC State Extension and the Lady Bird Johnson Wildflower Center list wild lupine as attracting hummingbirds.
The Lady Bird Johnson Wildflower Center lists hummingbirds among the species the flowers attract.
NC State explicitly lists hummingbirds among the visitors; the tubular corolla shape fits hummingbird bill morphology.