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Rudbeckia × 'American Gold Rush' (American Gold Rush Black-Eyed Susan)
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© F. D. Richards, some rights reserved (CC-BY-SA) · Wikimedia Commons

Rudbeckia 'American Gold Rush'

American Gold Rush Black-Eyed Susan

Garden hybrid; Perennial Plant of the Year 2023

At a Glance

FoliageDeciduous
Height22-26 inches (55-65 cm)
Width22-26 inches (55-65 cm)
Maturity2 years

Growing Zones

USDA Hardiness Zones

3 - 9
These zones indicate the coldest temperatures this plant can typically survive.
What's my zone? →
Frost Tolerancehardy

Overview

Rudbeckia × 'American Gold Rush' is a hybrid black-eyed Susan named the 2023 Perennial Plant of the Year, growing 22–26 inches (55–65 cm) tall and wide. Golden-yellow daisy flowers 2–3 inches (5–8 cm) across with dark brown-black central cones appear from July through October. The cultivar was bred specifically to resist Septoria leaf spot — the fungal disease that disfigures the lower foliage of 'Goldsturm' and other R. fulgida selections by midsummer, causing brown-spotted, defoliated lower stems. 'American Gold Rush' maintains clean foliage through the entire growing season, addressing the single biggest complaint about traditional black-eyed Susans. The foliage has a different shape from typical rudbeckias: narrow, willow-like, dark green hairy leaves rather than the broad ovate leaves of R. fulgida. This narrow leaf shape is inherited from R. missouriensis in its parentage and contributes to the disease resistance — the narrower leaves dry faster and resist fungal infection. The clumping habit is well-behaved — moderate spread without aggressive stolons. The compact stature and clean foliage make this a practical black-eyed Susan for residential landscapes. Deer avoid the foliage.

Native Range

Rudbeckia × 'American Gold Rush' is a garden hybrid bred by Dr. Jim Ault at the Chicago Botanic Garden. Perennial Plant of the Year 2023.

Suggested Uses

Used in perennial borders, mass plantings, and residential landscapes where clean foliage is valued. A strong alternative for gardeners tired of Septoria-spotted 'Goldsturm'. Perennial Plant of the Year 2023. The narrow foliage adds a different texture to the garden.

How to Identify

Identified by golden-yellow daisy flowers with dark cones on a compact plant with narrow willow-like (not broad ovate) dark green hairy leaves. The narrow leaf shape is the key visual separator from all other common rudbeckias. The clean, disease-free foliage through the season confirms the Septoria resistance. Perennial Plant of the Year 2023.

Appearance

Size & Dimensions

Height1'10" - 2'2"
Width/Spread1'10" - 2'2"

Reaches mature size in approximately 2 years

Colors

Flower Colors

Foliage Colors

Fall Foliage Colors

Bloom Information

Bloom Period

~10 weeks
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Flowering from July through October, approximately 10+ weeks. Golden-yellow daisies with dark cones. Clean foliage through the entire bloom season.

Detailed Descriptions

Flower Description

Golden-yellow ray florets with a dark brown-black central cone

Foliage Description

Dark green, narrow, willow-like, hairy — a different shape from typical broad rudbeckia foliage

Growing Conditions

Sun Requirements

Requires 5-10 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range5.5 - 7.5(Neutral)
357912
Soil Types
Drainageaverage

Water & Climate

Water Needs

Medium

Frost Tolerance

hardy

Time to Maturity

1-2 years

Drought Tolerance

Drought tolerant when established

Care & Maintenance

Care Guide

Sow or set in full sun to partial shade. Average to moist soil; tolerates clay. No fertilization is needed. The disease resistance means no fungicide spraying or lower-leaf cleanup is needed. Stems can be left standing through winter. Cut to ground in early spring. Divide every 3–4 years.

Pruning

Cut all stems to ground in late February–March. No midsummer foliage cleanup needed — the disease-resistant leaves stay clean.

Pruning Schedule

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early spring

Maintenance Level

very low

Container Growing

✓ Suitable for container growing

Minimum container size: 5 gallons

⚠️ Toxicity Warning

Non-toxic