Inconnu - Inadequate information on toxicity found however other Rudbeckia are toxic and suspect this species to be toxic if ingested.
Source: David J Stang
Plant Names
Rudbeckia speciosa wenderoth
Showy Coneflower
Rudbeckie voyante
Plant Characteristics
Couleur de floraison: Jaune
Bloom Period: Aug - Oct
Hauteur max: 2,0 feet
Max Width: 2,0 feet (spreads by rhizome)
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:
Vivace
des plantes qui reviennent année après année
Gardener Experience:
Ne se propage pas de manière incontrôlable
Spreads by rhizome
Facile à germer
Self-seeding
Ne se propage pas de manière incontrôlable
Spreads by rhizome
Facile à germer
Self-seeding
Landscape Uses:
Suitable for container garden
Suitable for school gardens
Suitable for container garden
Suitable for school gardens
Ecological Benefits:
Bee host
Bee host
Tolerates:
Tolerates juglone conditions
Tolerates transplantation
Tolerates juglone conditions
Tolerates transplantation
Special Features and Considerations:
Seed and plant distribution status
No seeds available for this plant.
Nous acceptions les semences de cette plante
Faits intéressants
Showy Coneflower is a cheerful native perennial with bright yellow, daisy-like flowers surrounding a dark brown to black central cone. It blooms from summer into early fall and is an excellent choice for a sunny perennial garden. Unlike some of the very tall Rudbeckia species, Showy Coneflower is generally more compact and manageable, making it well suited to home gardens, borders and naturalized plantings.
The dark central cone is actually made up of many tiny individual flowers, called disc florets. The yellow “petals” are individual ray florets.
Showy Coneflower is a member of the sunflower family (Asteraceae) and is related to Black-eyed Susan and coneflowers such as Echinacea.
The dried central cones can remain attractive through winter, giving the plant four-season interest when the stems are left standing.
The dark central cone is actually made up of many tiny individual flowers, called disc florets. The yellow “petals” are individual ray florets.
Showy Coneflower is a member of the sunflower family (Asteraceae) and is related to Black-eyed Susan and coneflowers such as Echinacea.
The dried central cones can remain attractive through winter, giving the plant four-season interest when the stems are left standing.
Plant Location
Distribution according to VASCAN
Ephemeral
Native
Introduced
Excluded
Extirpated
Doubtful
Absent
Canadensis
Thrives in Ecozones
- Plaines boréales
Ecological Benefits
Butterflies Supported by Rudbeckia speciosa wenderoth
-
Eupithecia miserulata
American Common Pug
Specialized Bees Supported by Rudbeckia speciosa wenderoth
- 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
- No complementary plants found.
Substitute For Non-Native Plants
No substitute plant data available for this plant.
Sowing Information
Download Seed Envelope Labels (PDF)
- Sowing depth: Surface sow
- Sow by March
- Stratification duration: 30 days
- Self-seeding
Harvesting and Seed Sharing
- Harvest start month: September
- Harvesting indicator:
- Seeds are dark and dry, and 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: No, you can donate without knowing the source as there are only straight species
- No harvesting video available at this time.
Toxicity Notes
Inadequate information on toxicity found however other Rudbeckia are toxic and suspect this species to be toxic if ingested.