Petasites Species, Alpine Butterburr, Sweet Coltsfoot
Petasitesparadoxus

Family: Asteraceae (ass-ter-AY-see-ee)
Genus: Petasites (pet-uh-SY-tees)
Species: paradoxus (par-uh-DOKS-us)

Synonym:Petasites niveus

Synonym:Tussilago paradoxa

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
Full Sun
Sun to Partial Shade
Light Shade

Foliage
Herbaceous

Foliage Color

Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing
15-18 in. (38-45 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)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)

Where to Grow

Danger

Bloom Color
Pale Pink
White/Near White

Bloom Characteristics

Bloom Size

Bloom Time
Mid Spring
Late Spring/Early 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
By dividing the rootball
From seed; direct sow outdoors in fall
Direct sow as soon as the ground can be worked

Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds