This site is protected by hCaptcha and the hCaptcha Privacy Policy and Terms of Service apply.
For successful seedlings,
see the growing notes at the bottom of the page!
Black-eyed Susan (Rudbeckia hirta) is a native perennial or biennial plant admired for its large, bright yellow flowers with a prominent brown center, blooming from mid-summer through fall. It typically reaches up to 60 cm in height and is ideal for wildflower borders and naturalized gardens. Black-eyed Susan prefers well-drained soils and tolerates poor soils and drought once established, adding a vibrant and long-lasting splash of colour to late-season gardens.
Medicinal and Culinary Uses
Black-eyed Susan has astringent and mildly analgesic properties. Traditionally, it is used as an infusion to soothe sore throats and reduce mild inflammation of the mucous membranes.
Ecological Roles
Black-eyed Susan attracts numerous pollinators, including bees, butterflies, and even some hummingbirds, which enjoy its nectar and pollen. Additionally, its seeds provide a food source for birds in fall and winter. This plant is valuable in ecological and naturalized gardens, where it supports local biodiversity while offering a brilliant bloom display that lasts until the first frosts.
Black-eyed Susan seeds require cold stratification to ensure germination. See the cultivation notes below for more details.
Akène cannot assume any responsibility for the use of plants for therapeutic purposes. Always seek advice from a professional before using a medicinal or edible plant.
Sowing and Growing
Technical Details
Seeds per packet: 300
Family: Asteraceae
Scientific name: Rudbeckia hirta
Life cycle: Perennial
Hardiness zone: 3
Soil type: Silty to clayey
Soil moisture level: Dry to medium
Soil - additional attributes: Well-drained, poor
Light: Sun, partial shade
Blooming: July to September
Spacing: 30 cm
Height: 60 cm
Deer resistance: High
Stratification: 30 days
Scarification: No
Germination time: 7 to 15 days
Sowing depth: 3 mm