Photo by Melody

PlantFiles: Common Butterbur, Pestilence Wort, Bog Rhubarb, Devil's Hat
Petasites hybridus

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Petasites (pet-uh-SY-tees) (Info)
Species: hybridus (hy-BRID-us) (Info)

Synonym:Petasites officinalis
Synonym:Petasites ovatus
Synonym:Petasites vulgaris

4 members have or want this plant for trade.

Category:
Groundcovers
Perennials

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

Spacing:
36-48 in. (90-120 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)

Sun Exposure:
Sun to Partial Shade
Light Shade

Danger:
Unknown - Tell us

Bloom Color:
Pale Pink
Pink
Rose/Mauve
Magenta (Pink-Purple)
White/Near White

Bloom Time:
Late Winter/Early Spring
Mid Spring

Foliage:
Grown for foliage
Deciduous
Herbaceous

Other details:
May be a noxious weed or invasive
This plant is attractive to bees, butterflies and/or birds
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

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to view:

By stevenova
Thumbnail #1 of Petasites hybridus by stevenova

By stevenova
Thumbnail #2 of Petasites hybridus by stevenova

By kniphofia
Thumbnail #3 of Petasites hybridus by kniphofia

Profile:

No positives
No neutrals
1 negative

Gardeners' Notes:

RatingAuthorContent
Negative Vermonter1950 On Jun 27, 2013, Vermonter1950 from Plainfield, VT wrote:

This plant was put in behind my pond as an ornamental and is now invasive, growing into my neighbor's field and steam as well as into my pond. I live in Central Vermont and had a State botanist come identify the plant. It has not until now been noted as an invasive plant in Vermont. It grows very fast and is extremely difficult to stop. Any help would be appreciated.

Regional...

This plant has been said to grow in the following regions:

Greenwell Springs, Louisiana
Plymouth, Massachusetts
Mahwah, New Jersey
Southampton, New York
West Kill, New York
Portland, Oregon
West Grove, Pennsylvania
Lindon, Utah
Plainfield, Vermont



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