Life Span
Perennial
Perennial
Type
Herbaceous Perennial
Perennial
Origin
China, Japan, Korea
-
Types
-
Pyrus pyrifolia
Number of Varieties
151
0
40000
👆🏻
Habitat
Dappled Shade, meadows, Shady Edge, Sunny Edge, Woodland Garden
Hedge, hedge rows, Woodland edges
USDA Hardiness Zone
5-94-9
0
99
👆🏻
AHS Heat Zone
9-4
9-1
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
60.00 cm300.00 cm
0
3900
👆🏻
Minimum Width
120.00 cm300.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Light Yellow, Ivory
White
Flower Color Modifier
Bicolor
-
Fruit Color
-
Light Red, Orange, Yellow
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Green
Green
Leaf Color in Fall
Green
Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Ovate
Elliptic
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer
Growing Conditions
Sunlight
Partial shade, Full Shade
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Poorly Drained
Well drained
Bloom Time
Early Spring, Late Winter
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site
Drought
Where to Plant?
Container, Ground, Pot
Ground
How to Plant?
Divison, Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Water once every two or three weeks
Average Water Needs, Do not water frequently
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
Loam, Sand
Soil Drainage Capacity
Poorly Drained
Well drained
Sun Exposure
Partial shade, Full Shade
Full Sun, Partial Sun
Pruning
Remove the old foliage
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Use a fertilizer ratio of 16-4-8
All-Purpose Liquid Fertilizer
Pests and Diseases
-
Red blotch
Plant Tolerance
Drought
Drought
Flowers
Showy
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
Bold
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
-
Allergy
-
-
Uses
Aesthetic Uses
Bog Garden, Showy Purposes
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Antiasthamatic, Antispasmodic, Expectorant, Poultice
Astringent, Febrifuge
Part of Plant Used
Flowers, Stem
Flowers, Stem
Other Uses
Can be boiled and seasoned, pickled, Used as umbrellas by Japanese children, Used as walking sticks, Used like rhubarb
Planted in shelterbeds, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bog Garden, Container, Feature Plant, Water Gardens
Edible, Fruit / Fruit Tree
Botanical Name
PETASITES japonicus
PYRUS 'Ayers'
Common Name
Giant Butterbur, Japanese Butterbur
Ayers Pear, Pear
In Hindi
Giant Butterbur
Ayers Pear
In German
Riesen Pestwurz
Ayers Birne
In French
géant Butterbur
Ayers Poire
In Spanish
gigante petasita
Ayers pera
In Greek
Giant Butterbur
Ayers Pear
In Portuguese
Carrapicho gigante
Ayers Pear
In Polish
Giant Lepiężnik
Ayers Gruszka
In Latin
Giant Butterbur
Ayro Orbis
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Rosales
Family
Asteraceae
Rosaceae
Genus
Petasites
Pyrus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Senecioneae
-
Subfamily
Asteroideae
-
Number of Species
130
1
27800
👆🏻