Brown-eyed susan (Rudbeckia triloba)

Brown-eyed susan

Also known as: Browneyed susan, Branched coneflower

Brown-eyed susan (Rudbeckia triloba) flowering plant that blooms in late summer. Brown-eyed susan can grow as a perennial or a biennial depending on the growth region. Brown-eyed susan is also called the "Thin-Leaved Coneflower," "Three-Lobed Coneflower," or "Branched Coneflower."

Scientific classification

Species

Brown-eyed susan (Rudbeckia triloba)

Asters bellflowers fanflowers and allies

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Perennial, Biennial, Annual

Lifespan

Herb

Plant Type

Summer, Fall

Bloom Time

2.5 cm to 8 cm

Flower Size

Brown

Fruit Color

Yellow, Orange, Black, Gold

Flower Color

Green, Red, Yellow

Stem Color

Winter dormancy

Dormancy

Deciduous

Leaf type

20 - 35 ℃

Ideal Temperature

Summer, Fall

Growth Season

Images of Brown-eyed susan

Distribution of Brown-eyed susan

Distribution Map

Brown-eyed susan is primarily native to North America, thriving in various regions across the continent. Beyond its home range, brown-eyed susan has been introduced to parts of Europe, depicting its resilience and adaptability. Despite not being endemic to these areas, brown-eyed susan flourishes and is now widely cultivated in these introduced regions.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Old fields, roadsides

Hemisphere Trend Curve

Northern

Sorthern

Culture

Garden Use

Brown-eyed susan can adorn the garden with abundant daisy-like flowers with dark brown centers from later summer through fall. It is extremely hardy, and provides winter interest with its remaining foliage. These traits make them an excellent choice for mass plantings in borders, cottage gardens, and even in wildflower meadows.

Symbolism

Encouragement and motivation

Name Story

Brown-eyed susan: If you observe closely, you will notice that the petals are featured with orange near the central cone and golden yellow further out of the center. The flowers are not pure black but closer to brown, so it is called brown-eyed Susan.

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Cultivars

There are several recognized cultivars of Brown-eyed susan, including the following common varieties :

Brown-eyed susan 'Prairie Glow'

Quickly Identify Brown-eyed susan

Distinctive dark purple-brown centers in vivid yellow daisy-like blossoms.

Prominent dark brown center surrounded by bright yellow petals in 2 to 3-inch (5 to 7.5 cm) flowers.

Oval to oblong achenes, 0.1 inches (2-3 mm) long, with ribbed texture, maturing from green to dark brown or black.

Three distinct lobes on 2 to 4-inch (5 to 10 cm) long leaves, rich green color with visible veins.

Densely branching stems ranging from 2 to 4 feet (60 to 122 cm) in height, supporting bushy appearance.

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Care Guide for Brown-eyed susan

Every week

Water

Full sun

Sunlight

20 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Brown-eyed susan thrives in moist meadows and woodlands, preferring consistent moisture but tolerating short dry spells. Water weekly to maintain vitality. Typically grown outdoors, brown-eyed susan benefits from natural light and seasonal rainfall, aligning its growth cycle with hydration periods for optimal health.

Fertilize: Brown-eyed susan requires balanced nutrition for optimal growth, using a slow-release fertilizer like 10-10-10 twice a year—once in early spring and again at blooming onset. Reduce feeding in late fall and avoid overfertilization to prevent harm. Water well after applying and monitor the plant's response.

Pruning: Brown-eyed susan features vibrant yellow flowers and requires regular pruning for optimal health. Initial trimming should occur in early spring to eliminate dead stems, followed by shaping later for fuller blooms. Proper tool sanitation is crucial to prevent disease transmission and extend the flowering season.

Propagation: Propagation of brown-eyed susan occurs best in Spring via sowing. It's an easy process with success indicated by germination and robust growth. For optimal results, use well-draining soil and ensure ample sunlight.

Repotting: Repot brown-eyed susan every 2-3 years in early spring in a larger pot to support growth. After repotting, ensure brown-eyed susan receives ample sunlight and consistent moisture for recovery. Provide a supportive environment for upright growth and to enhance its vibrant blooms.

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