Toxic Plant Known to be toxic - Toxic to livestock and cats if ingested.
Image of Solidago riddellii
Source: Joshua Mayer
image of Flowering plant
Solidago riddellii
Riddell's Goldenrod
Verge d'or de Riddell
No seeds available for this plant.
We currently accept seeds for this plant
Bloom colour: Yellow Bloom period: Sep - Oct
Max Height: 3.0 feet
Max Width: 2.0 feet (spreads by rhizome)
Light condition:
Full sun More than 6 hours of direct sun a day
Soil conditions:
Moisture wet Tolerates wet soil condition
Lifespan: Perennial plants that will that come back year after year
Gardener Experience:
plant germinate easy Easy to germinate
plant self seeding Self-seeding
Landscape uses:
container suitable Suitable for container garden
school garden Suitable for school gardens
Ecological Benefits:
Pollinator garden Supports pollinators
butterfly host Butterfly host
Tolerates:
limestone Tolerant Tolerates limestone conditions
juglone Tolerant Tolerates juglone conditions
transplantation Tolerant Tolerates transplantation
Special Features and Considerations:
plant endangered This plant is endangered
causes skin rashes This plant causes skin rashes

Plant Location

Native to Ottawa region: No

Distribution according to VASCAN

Distribution: Solidago riddellii
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Boreal Plains
  • Mixed Wood Plains

Ecological Benefits

Butterflies Supported by Solidago riddellii

  • Cucullia convexipennis (Brown Hooded Owlet)
  • Eupithecia miserulata (American Common Pug)
  • Euplexia benesimilis (American Angle Shades)
  • Leuconycta diphteroides (Green Leuconycta)
  • Melanchra adjuncta (Hitched Arches)
  • Phragmatobia fuliginosa (Ruby Tiger)
  • Trichordestra legitima (Striped Garden Caterpillar)

Specialized Bees Supported by Solidago riddellii

  • Andrena aliciae
  • Andrena asteris
  • Andrena canadensis
  • Andrena chromotricha
  • Andrena hirticincta
  • Andrena nubecula
  • Andrena placata
  • Andrena simplex
  • Complexe Colletes americanus
  • Complexe Colletes compactus
  • Complexe Colletes simulans
  • Dianthidium simile
  • Megachile inimica
  • Melissodes agilis
  • Melissodes illatus
  • Melissodes trinodis
  • Protandrena andrenoides
  • Pseudopanurgus aestivalis
Plants that grow in similar conditions, that bloom at the same time.

Complementary Plants

  • No complementary plants found.

Substitute For Non-Native Plants

  • Oenothera (Non-Native Primrose)
  • Oenothera biennis (Evening Primrose Cultivars)
  • Oenothera fructicosa (Sundrops Cultivars)
  • Helianthus (Non-Native Sunflower)
  • NA (Black Eyed Susan's Cultivars)
  • Rudbeckia Triloba (Brown Eyed Susan's)
  • Echinacea (Coneflowers)
  • NA (Coreopsis cultivars)
  • Helianthus).1 (Non-Native Sunflower)
  • NA (Non-Native False Sunflower)

Sowing Information

Download Sowing Label (PDF)
  • Sowing depth: Surface sow
  • Sow by February
  • Stratification duration: 60 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: October
  • Harvesting indicator: Seeds have become fluffy and can be easily removed by shaking on gently pulling off from stem
  • Harvesting mean: Shake seed head in paper bag
  • Seed viability test: No test needed before donating
  • Packaging measure: 1 rounded 1/8 teaspoon
  • Seed storage: Air dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
  • At least one cultivar: No, you can donate without knowing the source as there are only straight species
  • No harvesting video available at this time.

Toxicity Notes

Toxic to livestock and cats if ingested.