Connu comme étant toxique - The plant's sap can cause skin irritation or allergic reactions in some people. Wear gloves if you have sensitive skin. Ingestion can cause stomach upset.
Plant Names
Rudbeckia hirta
Black-eyed Susan
Rudbeckie hérissée
Synonyms
hairy coneflower
marguerite jaune
rudbeckia hérissé
rudbeckie hirsute
Plant Characteristics
Couleur de floraison: Jaune
Bloom Period: Jun - Sep
Hauteur max: 2,0 feet
Max Width: 1,0 feet
Light Condition:
Plus de 6 heures d'ensoleillement par jour
More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Tolère des conditions de sol sec
Tolerates medium soil condition
Plus de 6 heures d'ensoleillement par jour
More than 2 or 3 hours but less than 6 hours of direct sun a day
Tolère des conditions de sol sec
Tolerates medium soil condition
Lifespan:
Bisannuel
des plantes qui mettront deux ans à fleurir, puis mourront
Gardener Experience:
Suitable for beginner gardeners
Ne se propage pas de manière incontrôlable
Facile à germer
Self-seeding
Suitable for beginner gardeners
Ne se propage pas de manière incontrôlable
Facile à germer
Self-seeding
Landscape Uses:
Suitable for rock gardens
Suitable for Right of Way gardens
Suitable for rain gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Suitable for school gardens
Tolerates boulevard garden conditions
Suitable for rock gardens
Suitable for Right of Way gardens
Suitable for rain gardens
Suitable for shoreline rehabilitation
Suitable for container garden
Suitable for school gardens
Tolerates boulevard garden conditions
Ecological Benefits:
Supports birds
Butterfly host
Bee host
Supports birds
Butterfly host
Bee host
Tolerates:
Tolerates drought conditions
Tolerates salt conditions
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates sandy conditions
Tolerates juglone conditions
Tolerates transplantation
Tolerates drought conditions
Tolerates salt conditions
Deer resistant
Rabbit resistant
Tolerates limestone conditions
Tolerates sandy conditions
Tolerates juglone conditions
Tolerates transplantation
Special Features and Considerations:
This plant is septic tank safe
This plant is septic tank safe
Seed and plant distribution status
No seeds available for this plant.
Nous acceptions les semences de cette plante
Faits intéressants
Black-eyed Susan is a short-lived perennial with bright yellow, daisy-like flowers surrounding a prominent dark brown centre. It blooms from early summer into fall and is one of the easiest native wildflowers for a beginner to grow. Let it self-seed annually to have plants frm year-to-year. Don't be concerned if an individual plant disappears after a few years. If allowed to self-seed, new plants can appear naturally. It performs best in full sun and tolerates drought once established. It does not need rich soil. If plants become crowded, thin out seedlings rather than trying to divide mature plants.
Plant Location
Native to Ottawa region: Oui
Distribution according to VASCAN
Ephemeral
Native
Introduced
Excluded
Extirpated
Doubtful
Absent
Canadensis
Thrives in Ecozones
- Taïga des plaines
- Maritime de l'Atlantique
- Taïga du Bouclier
- Plaines boréales
- Cordillière montagnarde
- Prairies
- Bouclier boréal
- Maritime du Pacifique
- Plaines à forêts mixtes
Ecological Benefits
Butterflies Supported by Rudbeckia hirta
-
Chlorochlamys chloroleucaria
Blackberry looper - Arpenteuse des ronces -
Eupithecia miserulata
American Common Pug
Specialized Bees Supported by Rudbeckia hirta
- Andrena aliciae
- Andrena rudbeckiae
- Complexe Colletes americanus
- Complexe Colletes compactus
- Megachile inimica
- Megachile pugnata
- Melissodes agilis
- Melissodes illatus
- Melissodes subillatus
- Melissodes trinodis
- Protandrena andrenoides
Complementary Plants
- Anaphalis margaritacea
Pearly Everlasting
Immortelle blanche - Asclepias tuberosa
Butterfly Milkweed
Asclépiade tubéreuse - Liatris spicata
Dense Blazing Star
Liatris à épi - Monarda fistulosa
Wild Bergamot
Monarde fistuleuse - Schizachyrium scoparium
Little Bluestem Grass
Barbon à balais
Substitute For Non-Native Plants
- Oenothera fructicosa (Sundrops Cultivars)
- Helianthus (Non-Native Sunflower)
- NA (Black Eyed Susan's Cultivars)
- Rudbeckia Triloba (Brown Eyed Susan's)
- Echinacea (Coneflowers)
- Leucanthemum (Shasta Daisy)
- NA (Non-native False Sunflower)
Sowing Information
Download Seed Envelope Labels (PDF)
- Sowing depth: Couvrir très légèrement
- Sow by March
- Stratification duration: 30 days
- Self-seeding
Harvesting and Seed Sharing
- Harvest start month: July
- Harvesting indicator:
- Seeds easily fall off when you gently pull them off
- Harvesting:
- Cut top edge then shake seeds off in bag or container with rock or equivalent
- Seed viability test:
- Pas de test requis avant le don
- Packaging measure: 1 rounded 1/8 teaspoon
- Seed storage:
- Sécher à l'air dans un sac en papier ou contenant ouvert, pour quelques jours jusqu'à sec
- Secouer de temps à autre pour prévenir la moisissure
- Cultivar: Yes, do not donate unless you know source, and there are no known cultivars in your garden or at proximity
- Remove non-seed material
- Harvesting video: Watch here
Toxicity Notes
The plant's sap can cause skin irritation or allergic reactions in some people. Wear gloves if you have sensitive skin. Ingestion can cause stomach upset.