Toxic Plant Known to be toxic - Toxic to livestock and cats if ingested.
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image of Flowering plant
Solidago gigantea
Giant goldenrod
Verge d’or géante
No seeds available for this plant.

We are not accepting seeds for this plant at the moment.

Bloom colour: Yellow Bloom period: August - September
Max Height: 6.0 feet
Max Width: 3.0 feet (spreads by rhizome)
Light condition:
Full sun More than 6 hours of direct sun a day
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Full shade Less than 2 or 3 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan : Perennial
Gardener Experience:
plant germinate easy Easy to germinate
Landscape uses:
container suitable Suitable for container garden
woodland garden Suitable for woodland gardens
Ecological Benefits:
Pollinator garden Supports pollinators
butterfly host Butterfly host
keystones species Keystone species
Tolerates:
limestone Tolerant Tolerates limestone conditions
juglone Tolerant Tolerates juglone conditions
transplantation Tolerant Tolerates transplantation

Plant Distribution

Native to Ottawa region: Yes

Distribution according to VASCAN

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

View on iNaturalist

Thrives in Ecozones

  • Ecozone-Montane Cordillera
  • Ecozone-Boreal Shield
  • Atlantic_Maritime
  • Ecozone-Pacific_Maritime
  • Ecozone-Prairies

Butterflies Supported by Solidago gigantea

  • Leuconycta diphteroides (Green Leuconycta)
  • Melanchra adjuncta (Hitched Arches)
  • Phragmatobia fuliginosa (Ruby Tiger)

Bees Supported by Solidago gigantea

  • 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

Complementary Plants Plants that grow in similar conditions, that bloom at the same time.

  • No complementary plants found.

Sowing Information

  • Sowing depth: Surface sow
  • Sow anytime
  • Stratification duration: 0 days
  • Self-seeding

Harvesting Information

  • 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 1/4 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
  • On Cultivar: No, you can donate without knowing the source as there are only straight species