trefle.io · Taken Mar 8, 2020 by Kerstin Kerstin (cc-by-sa)
Asteraceae
White butterbur
Petasites albus
Also known as Butterfly dock, Petasites glabrescens, Pestilence wort, Tussilago alba var. hermaphrodita
Native Plants · White Butterbur · Shade Perennial · Bog Garden · Ground Cover · Woodland Plant · Large Leaves · Moist Soil · Medicinal Herb · Stream Bank · Spreading Perennial
White butterbur is a vigorous, spreading perennial that thrives in moist, shaded spots such as stream banks, woodland edges, and bog gardens. Its large, bold leaves create striking ground cover in damp shade where few other plants perform well. Plant with adequate space as it spreads assertively via rhizomes and can colonize large areas over time.
Growing conditions
The details behind the basics
- Daily light
- 3 hours
- Watering
- Keep soil consistently moist; prefers reliably damp conditions and tolerates wet soils · Every 5-7 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7–7.5
- Temperature
- -25°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 24 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Algeria, Assam, Austria, Baltic States, Belgium, Bulgaria, Corse, Czechoslovakia, Denmark, France, FøRoyar, Germany, Great Britain, Greece, Hungary, India, Ireland, Italy, Netherlands
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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