Polymnia Species, Canadian Leaf Cup
Polymniacanadensis

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Polymnia (po-LIM-nee-uh)
Species: canadensis (ka-na-DEN-sis)

Synonym:Polymnia canadensis f. radiata

Synonym:Polymnia canadensis var. radiata

Synonym:Polymnia radiata

Category
Perennials

Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Sun Exposure
Light Shade

Foliage
Herbaceous
Succulent

Foliage Color

Height
36-48 in. (90-120 cm)

Spacing
18-24 in. (45-60 cm)

Hardiness
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)

Where to Grow

Danger
N/A

Bloom Color
White/Near White

Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds

Bloom Size

Bloom Time
Mid Summer

Other details

Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information

Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting
Collect seedhead/pod when flowers fade; allow to dry
Properly cleaned, seed can be successfully stored