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Black Eyed Susan

Rudbeckia hirta

Black Eyed Susan (Rudbeckia hirta) is a hardy, sun-loving perennial or biennial known for its bright yellow petals and dark, cone-shaped centers. This vibrant wildflower blooms from mid-summer to fall, attracting pollinators like bees and butterflies. Its low-maintenance nature makes it a popular choice for garden borders, meadows, and naturalized areas. Black Eyed Susan thrives in full sun and well-drained soil, offering extended beauty and color, while also being drought-tolerant once established.

$3.75

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Plant Data
Growing Instructions
Plant Data
Zones:  3, 4, 5, 6, 7, 8, 9, 10
Growth Cycle:  Perennial
Light:  Full Sun, Full Sun to Partial Shade
Water Needs:  Low, Low to Moderate
Color: 
Soil:  Tolerant of most soils, Chalky, Saline, Peaty, Sandy, Loam, Silty, Clay
Growth Rate:  Fast, Fast to Moderate
Maturity - (Vegetables Only): 
Edible:  No.
Height:  Up to 2 Feet
Evergreen:  No
Special Features:  Attracts Pollinators, Flowering, Container Growing, Drought Tolerant, Dried Flowers,Cold Hardy,Cut Flowers
Warnings:  Can be Invasive
Growing Instructions
How to Germinate Black Eyed Susan

How to Germinate Black Eyed Susan (Rudbeckia hirta)

  • Sow Black Eyed Susan seeds indoors 6-8 weeks before the last expected frost date.
  • Sprinkle seeds on the soil surface and press them lightly; do not cover, as they require light to germinate.
  • Keep the soil moist and maintain a temperature of 70-75°F (21-24°C) for optimal germination.
  • Seeds typically germinate within 7-21 days under ideal conditions.
  • After the danger of frost has passed, transplant the seedlings outdoors, spacing them 12-18 inches apart.
  • Alternatively, sow seeds directly outdoors in late spring for summer blooms.

Additional Tips

  • Black Eyed Susan prefers full sun but can tolerate light shade, especially in hotter climates.
  • Water regularly, particularly during dry spells, but avoid overwatering as they prefer well-draining soil.
  • Apply a layer of mulch around the plants to help retain moisture and control weeds.
  • Deadhead spent flowers to encourage continuous blooming throughout the season.
  • Divide mature plants every 2-3 years to promote healthy growth and prevent overcrowding.
Black Eyed Susan

Black Eyed Susan

$3.75