Life Span
Perennial
Perennial
Type
Herbs
Tree
Origin
China, Japan, Korea
Northeastern United States, Mid-Atlantic United States, Central United States, Canada
Types
-
Blue ash, Single-leaf ash, Fragrant ash
Number of Varieties
545
0
40000
👆🏻
Habitat
gardens, Grassland, Homesteads, Open areas
Moist Soils
USDA Hardiness Zone
5-93-7
0
99
👆🏻
AHS Heat Zone
9-4
7-1
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
-
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
60.00 cm1,220.00 cm
0
3900
👆🏻
Minimum Width
120.00 cm610.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Light Yellow, Ivory
Green, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Green, Tan
Leaf Color in Spring
Green, Light Green, Light Yellow, Ivory
Green, Dark Green
Leaf Color in Summer
Green, Light Yellow, Ivory
Dark Green
Leaf Color in Fall
Green, Light Yellow, Ivory
Yellow, Yellow green, Brown, Bronze
Leaf Color in Winter
-
-
Shape
Leaf Shape
Round
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer
Growing Conditions
Sunlight
Partial shade, Full Shade
Full Sun
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Poorly Drained
Average
Bloom Time
Early Spring, Late Winter
Early Spring, Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site
Wet Site
Where to Plant?
Ground, Pot
Ground
How to Plant?
Divison, Stem Planting
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Allow soil to be completely dry in between waterings, Keep ground moist, Needs 2-3 times watering per week, Over-head watering, Requires watering in the growing season
Average Water Needs
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Poorly Drained
Average
Sun Exposure
Partial shade, Full Shade
Full Sun
Pruning
Remove deadheads, Requires very little pruning, Shape and thin as needed
Prune in fall, Prune in winter, Prune when plant is dormant, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove short twigs
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Pests and diseases free, Red blotch
Red blotch
Plant Tolerance
Wet Site
Wet Site
Flowers
Showy
Insignificant
Flower Petal Number
-
-
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Bold
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
Birds
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Nesting sites for birds, Wildlife, Windbreak
Plant Benefits
Medicinal Uses
-
Antirheumatic, Diaphoretic, Diuretic, Fever, Gout, Laxative, Ophthalmic, Purgative, Sore Eyes, Sore throat, Tonic
Part of Plant Used
Whole plant
Inner Bark, Leaves, Tree trunks
Other Uses
-
Basketary, Used as a dye, Used as fuel, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bog Garden, Container, Feature Plant, Water Gardens
Shade Trees, Water Gardens
Botanical Name
PETASITES japonicus 'Variegatus'
FRAXINUS nigra
Common Name
Giant Butterbur, Japanese Butterbur, Variegated Butterbur
Black Ash, Brown Ash, Swamp Ash
In Hindi
variegated butterbur
Black Ash plant
In German
bunte Pestwurz
Black Ash Pflanze
In French
pétasite panachée
plante Black Ash
In Spanish
butterbur abigarrado
planta de negro de Ceniza
In Greek
διαφοροποιημένα butterbur
φυτό μαύρη τέφρα
In Portuguese
butterbur variegada
planta Black Ash
In Polish
barwny Lepiężnik
Black Ash roślin
In Latin
varius butterbur
Black ash herba
Kingdom
Plantae
Plantae
Phylum
-
Magnoliophyta
Class
-
Magnoliopsida
Order
Asterales
Scrophulariales
Family
Asteraceae
Oleaceae
Genus
Petasites
Fraxinus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
Senecioneae
Oleeae
Subfamily
-
-
Number of Species
1718
1
27800
👆🏻