Toxic Plant Pas connu comme étant toxique - Not known to be toxic to mammals if ingested.
Image of Pycnanthemum verticillatum
Source: Alan Weakley
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Plant Names

image of Plante à fleurs
Pycnanthemum verticillatum
Whorled Mountain-mint
Pycnanthème verticillé

Plant Characteristics

Couleur de floraison: Blanc Bloom Period: Jul - Aug
Hauteur max: 3,0 feet
Max Width: 1,5 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: Vivace des plantes qui reviennent année après année
Gardener Experience:
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
container suitable Suitable for container garden
school garden Suitable for school gardens
Ecological Benefits: No ecological benefits information available.
Tolerates:
Deer Resistant Deer resistant
Rabbit Resistant Rabbit resistant
Transplantation Tolerant 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

Whorled Mountain-mint has clusters of white flowers surrounded by attractive silvery bracts. It grows well average to moist soils. It is easy to divide and is excellent for pollinator meadows.

Plant Location

Distribution according to VASCAN

Distribution: Pycnanthemum verticillatum
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent

Thrives in Ecozones

  • Plaines à forêts mixtes

Ecological Benefits

Butterflies Supported by Pycnanthemum verticillatum

No butterfly data available for this plant.

Specialized Bees Supported by Pycnanthemum verticillatum

No bee data available for this plant.

Complementary Plants

  • No complementary plants found.

Substitute For Non-Native Plants

  • Lamium (Dead nettle)
  • Ajuga reptans (Bugleweed)
  • Salvia (Non-Native Sage)
  • Lamium galeobdolon (Yellow Archangel)
  • Leucanthemum (Shasta Daisy)
  • Gerbera (Gerbera Daisy)
  • Hesperis matronalis (Dame Rocket)
  • Mentha (Non-Native Mints)
  • Monarda (Beebalm Cultivars)

Sowing Information

Download Seed Envelope Labels (PDF)
  • Sowing depth: Surface sow
  • Sow anytime
  • Stratification duration: 0 days
  • Self-seeding

Harvesting and Seed Sharing

  • Harvest start month: November
  • Harvesting indicator:
    • Pods are brown and crisp and starting to open
    • Seeds are dark and tiny stem attaching to the main stem is brown
    • Seeds easily fall off pod when shaken
    • Little stem connecting the pod to the main stem is brown (not green)
  • Harvesting:
    • Put pods in food processor or blender and blend seeds, and strain seeds using a strainer
  • Seed viability test:
    • Pas de test requis avant le don
  • Packaging measure: 1 rounded 1/32 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
  • Remove non-seed material
  • No harvesting video available at this time.

Toxicity Notes

Not known to be toxic to mammals if ingested.