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Whip-poor-will flower

Trillium cernuum

Last reviewed: October 2026

Whip-poor-will flower (Trillium cernuum) is a perennial forb native to CT, DC, DE, IA and 19 more states. It blooms in April and May. The flowers draw bees, flies, and beetles.

Whip-poor-will flower (Trillium cernuum)
Photo: (c) Tom Scavo, some rights reserved (CC BY)

Toxicity unknown

Whip-poor-will flower (Trillium cernuum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

Light

part shade

Water

medium

Size

8"–18" H × 8"–12" W

Bloom

Apr, May

Native to

CT, DC, DE, IA and 19 more states

Pollinators

bees, flies, beetles

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 458 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Picture natives in your own yard

Upload a photo of your yard and Patch Vision shows a rendering of it planted with natives for your region, like Whip-poor-will flower.

Low woodland perennial with a whorl of three broad leaves and a single nodding white flower that hangs below the leaves, often hidden from above, blooming in mid-spring in moist, rich forests. Goes dormant by midsummer.

Growing Whip-poor-will flower

Grow Whip-poor-will flower in part shade and medium water. Mature plants reach 8 to 18 inches tall and spread 8 to 12 inches wide.

Wildlife value

Early spring flowers provide nectar and pollen to emerging bees, flies, and beetles.

Common questions

How much sun does Whip-poor-will flower need?
Whip-poor-will flower grows best in part shade conditions.
When does Whip-poor-will flower bloom?
Whip-poor-will flower blooms in April and May.
Where is Whip-poor-will flower native?
Whip-poor-will flower (Trillium cernuum) is native to CT, DC, DE, IA and 19 more states, per the World Checklist of Vascular Plants (Kew).
What pollinators does Whip-poor-will flower attract?
Whip-poor-will flower draws bees, flies, and beetles.

Native range data from the World Checklist of Vascular Plants (Kew). Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Whip-poor-will flower? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.