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Black-Eyed Susan Flower Seeds - Rudbeckia Fulgida var. Sullivantii

Black-Eyed Susan Flower Seeds - Rudbeckia Fulgida var. Sullivantii

$16.49 USD
$16.49 USD
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How to Sow and Plant

Spacing: Space seeds/seedlings about 45–60 cm (18–24 in) apart to allow mature plants room to grow

Seed Preparation: No special pre-treatment is required; seeds can be sown directly

Sowing: Sow seeds in early spring after frost risk has passed or in late fall. Surface sow and press gently into well-drained soil.



How to Grow

Soil: Well-drained soil; tolerates a wide range of conditions including poorer soils.


Light: Full sun to partial shade encourages best flowering.

Tips

Can attract bees, butterflies, and birds with abundant nectar and seed heads


Excellent for garden beds, borders, and wildflower plantings

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About
Product Information
Features
life-cycle

LIFE CYCLE

Perennial herbaceous

plant-characteristics

PLANT CHARACTERISTICS

Upright

growth-habit

GROWTH HABIT

Clumping, upright stems

bloom-season

BLOOM SEASON

Summer to Fall

flavour-profile

FLAVOUR PROFILE

Ornamental

suitable-for

SUITABLE FOR

Outdoor

About
Black-Eyed Susan Flower Seeds - Rudbeckia Fulgida var. Sullivantii
seed-type

SEED TYPE

Flower seeds

plant-type

PLANT TYPE

Herbaceous perennial


Black-Eyed Susan (Rudbeckia Fulgida var. Sullivantii) is a classic perennial favored for its cheerful, golden-yellow flowers with contrasting dark central discs that bloom profusely from midsummer into fall. Native to eastern North America and widely cultivated in gardens worldwide, this species is adaptable to a variety of soil types and thrives in full sun to light shade. Its long-lasting blooms make it ideal for garden beds, borders, pollinator gardens, and meadow plantings, providing color and ecological value with minimal care.

Planting information
planting-season

PLANTING SEASON

Spring, Late Fall

fruit-size

FRUIT SIZE

Not Applicable

plant-height

PLANT HEIGHT

45–90 cm

light-requirement

LIGHT REQUIREMENT

Full Sun to Partial Shade

water-needs

WATER NEEDS

Moderate

hardiness-zones

HARDINESS ZONES

USDA Zones ~3–9

container-garden

CONTAINER GARDEN

Yes

plant-spacing

PLANT SPACING

45–60 cm

planting-depth

PLANTING DEPTH

Surface sow / light press

growing-conditions

GROWING CONDITIONS

Well-drained soil with sunlight

Coverage
Seed Count
Recommended Coverage
SEED COUNT
100
GTIN
036000121124

Frequently Asked Questions

What makes Black Eyed Susan different from traditional daisies?

Its bright golden petals surrounding a dark central cone create a bold and recognizable garden display.

Can this Rudbeckia be planted in prairie-style gardens?

Yes, it blends beautifully with ornamental grasses and other meadow-style perennials.

Will the flowers provide color into late summer?

Yes, healthy plants bloom from summer into early autumn, extending seasonal interest.

Can Black Eyed Susan be grown for fresh floral arrangements?

Yes, the sturdy stems and long-lasting blooms are well suited for cut flower bouquets.

Do butterflies, bees, and birds visit the flowers?

Yes, the blooms may attract butterflies, bees, and other beneficial pollinators, while mature seed heads may attract birds.

Does dividing mature clumps help maintain vigorous growth?

Yes, occasional division helps keep established plants healthy and encourages reliable flowering.