Life Span
Perennial
Perennial
Type
Tree
Shrubs
Origin
North America
China, Japan, Korea
Types
Water elm
Petasites hybridus
Number of Varieties
3510
0
40000
👆🏻
Habitat
Floodplains, Hillside, stream banks, Swamps, Upland
Wet lands
USDA Hardiness Zone
3-95-9
0
99
👆🏻
AHS Heat Zone
9-1
9-4
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Clump-Forming
Plant Size
Minimum Height
1,830.00 cm60.00 cm
0
3900
👆🏻
Minimum Width
910.00 cm120.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Green
Light Yellow, Ivory
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Tan
-
Leaf Color in Spring
Light Green
Green, Purple, Burgundy
Leaf Color in Summer
Dark Green
Green, Purple
Leaf Color in Fall
Light Yellow
Green, Purple
Leaf Color in Winter
-
-
Shape
Leaf Shape
Oblique base
Round
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun
Partial shade, Full Shade
Growth Rate
Fast
Fast
Type of Soil
Loam
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Average
Poorly Drained
Bloom Time
Early Spring
Early Spring, Late Winter
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Cold climate, Drought, Pollution, Salt
Wet Site
Where to Plant?
Ground
Ground
How to Plant?
Rooted stem cutting, Seedlings, Stem Planting
By dividing rhizomes, tubers
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Average Water Needs, Requires regular watering, Requires watering in the growing season, Water Deeply
Requires consistently moist soil
In Summer
Ample Water
Lots of watering
In Spring
Average Water
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Type
Loam
Clay, Loam, Sand
Soil Drainage Capacity
Average
Poorly Drained
Sun Exposure
Full Sun
Partial shade, Full Shade
Pruning
Remove dead branches, Remove dead or diseased plant parts, Remove hanging branches
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Fertilize every year, fertilize in growing season, Nitrogen, Phosphorous, Potassium
All-Purpose Liquid Fertilizer
Pests and Diseases
Bark beetles, Beetles, Borers, Mites, Moth, Red blotch, Scale
Red blotch
Plant Tolerance
Cold climate, Drought, Salt
Drought
Flowers
Insignificant
Showy
Flower Petal Number
Single
-
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Bold
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
-
Allergy
allergic reaction, Asthma
-
Uses
Aesthetic Uses
Landscape Designing
Ground Cover
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Absorbs greenhouse gases, Absorbs huge amounts of CO2, Air purification, Food for birds, Forms dense stands, Nesting sites for birds, Prevent Soil Erosion, Shelter for wildlife, Wildlife
Air purification
Plant Benefits
Medicinal Uses
Antispasmodic, Astringent
Asthma, Chronic fatigue
Part of Plant Used
Bark, Stem, Tree trunks, Wood
Leaves, Seeds, Stem
Other Uses
Used as firewood, Used for woodware, Used in biomass, Used in construction, Used in Furniture, Used in paper industry, Used in pulpwood and lumber production, Wood is used for making furniture, Wood is used for ship building, Wood is used fore making tools, Wood is used in construction, Wood log is used in making fences
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Bog Garden, Container, Water Gardens
Botanical Name
ULMUS americana
PETASITES japonicus 'Purpureus'
Common Name
American Elm
Giant Butterbur, Japanese Butterbur, Purple Butterbur
In Hindi
अमेरिकी एल्म
Purple Butterbur
In German
amerikanische Ulme
Lila Pestwurz
In French
orme d'Amérique
Violet Butterbur
In Spanish
olmo americano
púrpura petasita
In Greek
American Elm
Purple Butterbur
In Portuguese
olmo americano
roxo Carrapicho
In Polish
Amerykański wiązu
Purpurowy Lepiężnik
In Latin
Latin ulmo
Purple Butterbur
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Rosales
Asterales
Family
Ulmaceae
Asteraceae
Genus
Ulmus
Petasites
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
Senecioneae
Subfamily
-
-
Number of Species
4015
1
27800
👆🏻