Toxic Plant Inconnu - Inadequate information on toxicity found.
Image of Cirsium discolor
Source: Aaron Carlson

Plant Names

image of Plante à fleurs
Cirsium discolor
Field Thistle
Chardon discolore

Synonyms

pasture thistle
circe discolore

Plant Characteristics

Couleur de floraison: Violet Bloom Period: Aug - Oct
Hauteur max: 6,0 feet
Max Width: 2,0 feet (spreads by rhizome)
Light Condition:
Full sun Plus de 6 heures d'ensoleillement par jour
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Bisannuel des plantes qui mettront deux ans à fleurir, puis mourront
Gardener Experience:
does not spread Ne se propage pas de manière incontrôlable
plant spread by rhizome Spreads by rhizome
plant germinate easy Facile à germer
plant self seeding Self-seeding
Landscape Uses:
rock garden Suitable for rock gardens
woodland garden Suitable for woodland gardens
Ecological Benefits:
Pollinator garden Supports pollinators
butterfly host Butterfly host
bee host Bee host
Tolerates:
Limestone Tolerant Tolerates limestone conditions
Special Features and Considerations:
produces burs This plant produces burs

Seed and plant distribution status

No seeds available for this plant.
Nous acceptions les semences de cette plante

Faits intéressants

Field thistle has deeply divided leaves and pale pink to lavender flower heads in summer. It is found in meadows, fields, roadsides, woodland edges, and other open areas. Its upright form makes it appropriate for meadow and naturalized plantings rather than formal gardens. It is usually better suited to large naturalized areas than small gardens. Unlike invasive thistles, it is a native species and is not considered an invasive weed.

Plant Location

Native to Ottawa region: Oui

Distribution according to VASCAN

Distribution: Cirsium discolor
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Thrives in Ecozones

  • Maritime de l'Atlantique
  • Bouclier boréal
  • Plaines à forêts mixtes

Ecological Benefits

Butterflies Supported by Cirsium discolor

No butterfly data available for this plant.

Specialized Bees Supported by Cirsium discolor

  • Megachile inimica
  • Megachile pugnata
  • Melissodes agilis
  • Melissodes desponsus
  • Melissodes subillatus
  • Osmia chalybea
  • Osmia texana

Complementary Plants

  • No complementary plants found.

Substitute For Non-Native Plants

  • Cirsium arvense (Canada Thistle)

Sowing Information

Download Seed Envelope Labels (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 easily fall off when you gently pull them off
  • Harvesting:
    • Secouer le porte-graines dans un sac de papier
  • 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.