• Rudbeckia hirta
  • Perennial
  • Zones 3–8
  • Yellow
  • Single

Irish Spring

Perennial rudbeckia hirta black-eyed Susan in yellow, blooming in early summer, midsummer, late summer, and fall. Large daisy-like flowers 5 to 7 inches across with deep golden yellow rays and a greenish center disk. USDA zones 3–8.

Single source · Values marked like this (estimated) are estimates.

Buy from $11.42

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A Irish Spring black-eyed Susan flower up close on the plant
A Irish Spring black-eyed Susan flower up close on the plant

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Irish Spring black-eyed Susan plants in bloom in a garden
Irish Spring black-eyed Susan plants in bloom in a garden

At a glance

Flower form
Rudbeckia hirta Single · 5–7 in (13–18 cm)
Colors
  • Yellow
Blooms
Early summer, Midsummer, Late summer, Fall
Vase life
Not grown for cutting
Height
2–3 ft (61–91 cm) Spread: 1½–2 ft (46–61 cm)
Sunlight
Full sun
Hardiness
USDA zones 3–8 Perennial
Planted as
Seed
Botanical name
Rudbeckia hirta

In the garden

  • Butterflies
  • Seldom severely damaged by deer (Rutgers rating)

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Origin

Rudbeckia hirta cultivar with large flowers and greenish center disks.

Sources

Where to buy

Prices rechecked daily
  • Harris SeedsSeeds

    RAW / 250 seeds / UNTREATED

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    $11.42Checked Oct 14, 2026

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All photos

  • A Irish Spring black-eyed Susan flower up close on the plant
    A Irish Spring black-eyed Susan flower up close on the plant
  • Irish Spring black-eyed Susan plants in bloom in a garden
    Irish Spring black-eyed Susan plants in bloom in a garden

Questions

Is Irish Spring hardy in my zone?

Irish Spring survives winter in the ground in USDA zones 3 to 8. In colder zones treat it as an annual or lift it before the ground freezes.

Does Irish Spring need full sun?

Irish Spring grows in full sun.

When does Irish Spring bloom?

Irish Spring blooms in early summer, midsummer, late summer, and fall.

Is Irish Spring good for cutting?

Our sources don't list Irish Spring as a cut flower or give a vase life for it.