Bristly Rudbeckia

Common name Black-eyed Susan
Latin name Rudbeckia hirta
Quantity per packet Minimum 300 seeds

This native wildflower actively supports biodiversity by providing nectar and pollen throughout a long summer bloom period. It is also one of the best species for prairie gardens and ecological landscapes.

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Product information
Product
identification
Common nameBlack-eyed Susan
Latin nameRudbeckia hirta
FamilyAsteraceae
TypeNative wildflower
CyclePerennial
Quantity per packMinimum 300 seeds
Code produitAKENE-0048
Product
description

Black-eyed Susan (Rudbeckia hirta) is one of the most beloved native wildflowers, celebrated for its brilliant blooms and exceptional ease of cultivation. Its large golden-yellow flowers with dark brown centers brighten gardens from summer into early autumn, creating spectacular displays in perennial borders, wildflower meadows, and naturalistic landscapes. Highly floriferous and perfectly adapted to Canadian climates, this hardy native perennial brings vibrant color, movement, and life to the garden while attracting abundant bees, butterflies, and many other beneficial pollinators.

Black-eyed Susan thrives in well-drained soils, even those that are relatively poor, and becomes highly drought tolerant once established. Its compact habit and dependable growth make it equally suitable for pollinator gardens, traditional flower beds, and ecological restoration projects. Requiring very little maintenance, it returns reliably year after year and often self-seeds naturally when growing conditions are favorable. Its fresh green foliage provides the perfect backdrop for its luminous flowers, which remain attractive for many weeks.

Beyond its ornamental beauty, Black-eyed Susan plays an important ecological role by providing nectar and pollen throughout much of the summer. After flowering, its seed heads produce seeds eagerly consumed by many bird species, extending its value well into autumn. It combines beautifully with Wild Bergamot, Goldenrod, Dense Blazing Star, and native prairie grasses to create biodiversity-rich landscapes inspired by North America's natural prairies. With its abundant blooms, outstanding hardiness, and exceptional wildlife value, Rudbeckia hirta remains one of the finest native plants for sustainable, wildlife-friendly gardens.

Sowing
guide
Sowing periodAutumn or spring after cold stratification
Best time
Autumn or spring
Sowing depth3 to 5 mm (0.1 to 0.2 in)
Spacing / density
30 to 45 cm (12 to 18 in)
Germination temperature18 to 22 °C (64 to 72 °F)
Germination time7 to 15 days
Propagation
Propagate primarily by seed. This species self-sows readily under favorable conditions and gradually forms attractive natural colonies.
Growing
method
Sow Black-eyed Susan seeds in autumn or spring after a period of cold stratification to improve germination. Cover the seeds lightly with 3 to 5 mm (0.1 to 0.2 in) of growing medium and maintain temperatures between 18 and 22°C (64 to 72°F). Consistent moisture promotes rapid germination, usually within 7 to 15 days. Transplant seedlings once they have developed several true leaves and gradually acclimate them to outdoor conditions. This native wildflower thrives in sunny, well-drained locations and readily self-seeds, creating beautiful naturalized meadows over time.
Soil
and care
ExposureFull sun to partial shade
Soil
Loamy to clay, poor to moderately fertile, well-drained soil. This species thrives even in relatively poor soils and tolerates challenging conditions once established.
Soil pHAcidic to neutral
Watering
Moderate watering is recommended during establishment and prolonged dry periods. Once well rooted, this species tolerates drought very well.
Fertilization
A light application of compost each spring is generally sufficient to encourage abundant flowering. Rich soils are not recommended because they promote foliage at the expense of blooms.
Care levelLow
In spring, remove the previous year's dry stems and apply a light layer of compost around the plants. During summer, deadhead spent flowers to encourage continued blooming unless you wish to collect seed. Water only during extended drought. In autumn, leave several seed heads standing to feed birds and encourage natural reseeding. Once established in a well-drained location, Black-eyed Susan requires very little maintenance.
Container
growing
Recommended pot size
20 to 30 L (5 to 8 gal)
Black-eyed Susan grows exceptionally well in containers thanks to its compact habit and adaptability. Use a pot of at least 20 to 30 L (5 to 8 gal) filled with a light, well-drained growing medium. Place the container in full sun to encourage abundant flowering. This makes it easy to enjoy its brilliant blooms while attracting pollinators to patios and balconies.
Bloom,
harvest
and garden
Its brilliant golden blooms brighten gardens for months while attracting countless pollinators. It is one of the easiest native wildflowers for creating colorful, biodiversity-rich landscapes.
This native wildflower actively supports biodiversity by providing nectar and pollen throughout a long summer bloom period. It is also one of the best species for prairie gardens and ecological landscapes.
Garden use
Black-eyed Susan is perfect for pollinator gardens, wildflower meadows, and naturalistic landscapes. Its brilliant flowers create spectacular displays throughout summer and pair beautifully with Wild Bergamot, Goldenrod, and native prairie grasses. It continuously attracts bees, butterflies, and other beneficial insects while requiring very little maintenance. This native wildflower is an outstanding choice for adding color, biodiversity, and resilience to Canadian gardens.
Bloom period
Large golden-yellow flowers with dark brown centers bloom abundantly from summer into early autumn. They provide an excellent source of nectar and pollen for pollinating insects.
Flower colorGolden yellow with dark brown centers
Foliage colorGreen
Harvest
Seeds can be collected from August through October once the flower heads have dried. They are easy to store for future sowing or may be left in place for wildlife.
Fruiting
Seeds mature in late summer and early autumn within the dried flower heads. They provide an important food source for many seed-eating birds.
Wildlife appealBees and butterflies
Size
and facts
Height30 to 60 cm (12 to 24 in)
Spread30 to 45 cm (12 to 18 in)
Growth rateModerate
Hardiness zoneUSDA Zones 3–8
Minimum temperature-40°C (-40°F)
Foliage typeDeciduous
Papillonstrue
Insectes utilestrue
Résistant aux cerfstrue
Pet friendlytrue
Planting
partners
Good companions
Wild Bergamot, Dense Blazing Star, Switchgrass, Goldenrod
Avoid planting with
Northern Blue Flag Iris, Marsh Marigold, Ligularia, Horsetail
Recipe
and inspiration
Black-eyed Susan is not generally grown for culinary purposes, but its flowers are highly valued for supporting pollinators and for use in fresh or dried floral arrangements. The dried seed heads remain decorative long after flowering and are often used in natural floral displays. The seeds also provide an important food source for many bird species. Its greatest value remains its outstanding ornamental beauty and ecological importance.
Frequently asked questions
Black-eyed Susan seeds can be sown in autumn or spring after a period of cold stratification. This treatment generally improves germination and produces stronger seedlings.
Its large flowers produce abundant nectar and pollen, attracting a wide diversity of bees, butterflies, and other beneficial insects throughout its long bloom period.
Yes. This species adapts very well to container growing thanks to its moderate size and abundant flowering. A sunny location produces the best results.
Yes. Black-eyed Susan is exceptionally hardy and low maintenance. Once established, it requires little watering and returns reliably year after year.
Spent flowers can be removed to extend blooming or left in place to provide seeds for birds and create attractive winter interest in the garden.
The availability of our seeds varies depending on seasonal availability, production schedules and supplier inventory. Certain varieties may only be offered for a limited time based on their natural growth cycle, sowing period or available stock. These product pages are designed to help and inspire gardeners in choosing the right seeds for vegetable gardens, flower beds, pollinator gardens, container growing, naturalization projects and sustainable outdoor spaces.