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On sale

Seeds - Black-eyed Susan

Rudbeckia hirta

Minimum 300 semences par enveloppe

Sale price

$4.25

Regular price $4.25
( / )
Harvest year

Année de récolte: 2024


Catégories: auxiliaire, indigène, mellifère, nectarifère, résiste aux cerfs, vivace,

Aire de répartition indigène: SK, MB, ON,

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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.

Growing Notes | Seeds - Black-eyed Susan

Although technically a perennial, black-eyed Susan (Rudbeckia hirta) is often considered biennial, as some stems last only a season or two. However, this is offset by its ability to self-seed.

Its adaptable nature makes it an excellent choice for poor soils and challenging conditions. In overly rich soil, it may produce more foliage than flowers.

For optimal germination, cold stratification is recommended. Simply mix one part seeds with three parts moist vermiculite, place the mixture in an airtight bag, and refrigerate for about 30 days. Once stratified, the seeds can be planted directly outdoors in spring or started indoors in small pots, sown 5 mm deep.

Direct sowing in place in the fall is also possible, as natural stratification will occur over winter, though this may reduce germination rates.

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