Small-flowered Leaf Cup (Polymnia canadensis)

Common names:
Give a thumbs up Small-flowered Leaf Cup
Give a thumbs up Whiteflower leafcup
Give a thumbs up Canadian Leaf Cup

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Biennial
Sun Requirements: Partial or Dappled Shade
Water Preferences: Mesic
Soil pH Preferences: Neutral (6.6 – 7.3)
Slightly alkaline (7.4 – 7.8)
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 7a
Plant Height: 2 to 6 feet or higher
Plant Spread: 2 to 3 feet
Leaves: Fragrant
Fruiting Time: Late fall or early winter
Flowers: Showy
Flower Color: White
Other: white ray flower with yellowish center, rays sometimes absent.
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Underground structures: Taproot
Wildlife Attractant: Bees
Butterflies
Resistances: Humidity tolerant

Photo courtesy of: Tom Potterfield

Photo gallery:
Photo courtesy of: Tom Potterfield
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Discussion Threads about this plant
Thread Title Last Reply Replies
Anyone know what this is? by AllanBlane Jul 19, 2016 8:07 AM 3

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