black-eyed Susan
Wildflowers Active during the day

black-eyed Susan

Rudbeckia hirta

A golden icon of the American landscape, the black-eyed Susan is a hardy wildflower that serves as a vital oasis for pollinators. Its sun-tracking blooms and winter seed heads make it a year-round focal point for backyard wildlife enthusiasts.

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Quick Identification

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Size

Height: 30–100 cm (1–3.3 ft); Flower heads: 5–8 cm (2–3 in) wide

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Colors

Bright golden-yellow petals with a dark chocolate-brown to black central disk; stems and leaves are dull green

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Key Features

  • Daisy-like yellow flower heads with dark conical centers
  • Coarse, bristly hairs covering stems and leaves
  • Alternate, lance-shaped leaves with slightly toothed margins
  • Tall, upright growth habit often found in clusters
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When You’ll See Them

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Activity pattern Active during the day
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Peak hours 9 AM - 5 PM
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Season June-September
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Diet Photosynthetic (produces energy from sunlight); provides nectar and pollen to insects and seeds to birds.
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Habitat Open prairies, meadows, roadsides, and suburban gardens with full sun.

public Geographic range

Where Does the black-eyed Susan Live?

Native to the vast heartland of North America, the black-eyed Susan is one of the continent's most recognizable wildflowers. Its core range spans from the Rocky Mountains through the Great Plains to the Atlantic coast, covering nearly all of the contiguous United States and southern Canada. While it originated in the central prairies, it has successfully naturalized across Europe and parts of Asia due to its popularity in gardening and its ability to adapt to various temperate climates.

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5 Countries
15.5M km² Range
Least Concern Conservation
US United States CA Canada MX Mexico GB United Kingdom CN China
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iNaturalist / Verified observation data
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Behavior

Black-eyed Susans are resilient pioneer species, often among the first to colonize areas after a fire or soil disturbance. They exhibit a fascinating heliotropic behavior, where the flower heads subtly track the sun across the sky during the day to maximize the warmth on their central disks, which in turn attracts more pollinators. While they are often biennials or short-lived perennials, they are prolific self-seeders, allowing a single planting to persist for decades in a backyard setting.

These plants act as a social hub in the wild. Throughout the mid-summer blooming period, they provide a consistent landing platform for dozens of insect species. They have evolved a symbiotic relationship with local wildlife; while their bitter-tasting leaves deter many mammalian herbivores like deer, their nectar is highly accessible, making them a preferred stop for everything from tiny sweat bees to large swallowtail butterflies.

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Camera Tips

Capturing the black-eyed Susan on an AI wildlife camera is less about the plant itself and more about the 'pollinator party' it hosts. To get the best footage, place your camera on a ground stake or short tripod, positioning the lens roughly 12 to 18 inches from the ground. Angle the camera slightly upward toward the flower heads. This perspective allows you to see the underside of the petals and the intricate details of the insects as they land on the dark central cone.

Sunlight is your best friend and worst enemy. Because these flowers thrive in full sun, place your camera facing North or South to avoid the harsh glare of the morning or evening sun directly into the lens. The peak activity for pollinators like bees and butterflies occurs between 10 AM and 2 PM on warm, still days. If your camera has a high-speed trigger or a dedicated 'macro' focus mode, these are ideal for freezing the rapid wing movements of visiting clearwing moths or hoverflies.

Don't pack the camera away when the petals fall in late autumn. One of the best times for bird photography is during the winter months when the flower heads have dried and turned into seed-filled 'cones.' Leave the camera active to catch American Goldfinches, Chickadees, and Nuthatches perched precariously on the stems while they pry out the tiny seeds. A time-lapse setting can also be used during the spring to document the rapid growth of the stalks from the basal rosette.

Frequently Asked Questions

While the plant is always there, it is most 'active' for observers during the day. Its flowers follow the sun from east to west, and the highest frequency of pollinator visits—like bees and butterflies—occurs during the brightest, warmest hours between 10 AM and 4 PM.
These plants are easily grown from seed. Plant them in a spot that receives at least six hours of direct sunlight per day. They aren't picky about soil but prefer well-drained ground. Once established, they will self-seed, providing new blooms every year with very little maintenance.
As plants, they create their own food through photosynthesis using sunlight, water, and carbon dioxide. They also absorb essential minerals like nitrogen and phosphorus from the soil through their root systems.
Yes, they are extremely common in suburbs. They are a staple of 'pollinator gardens' and are frequently used by local governments for roadside beautification and erosion control because they are so hardy and drought-tolerant.
Look at the center and the leaves. Black-eyed Susans (Rudbeckia) have a dark brown or black central disk and very hairy, scratchy leaves. Purple Coneflowers (Echinacea) have a spiky, orange-tipped 'cone' in the center and generally larger, smoother leaves.

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