Life Span
Perennial
Perennial
Type
Herbs
Shrub
Origin
China, Japan, Korea
China, Japan
Types
-
-
Number of Varieties
55
0
40000
👆🏻
Habitat
gardens, Grassland, Homesteads, Open areas
subtropical regions, Temperate Regions
USDA Hardiness Zone
5-96-9
0
99
👆🏻
AHS Heat Zone
9-4
9-7
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Clump-Forming
Oval or Rounded
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, Silver
Flower Color Modifier
Bicolor
-
Fruit Color
-
Reddish Plum
Leaf Color in Spring
Green, Light Green, Light Yellow, Ivory
White, Dark Green, Sienna
Leaf Color in Summer
Green, Light Yellow, Ivory
White, Dark Green, Sienna
Leaf Color in Fall
Green, Light Yellow, Ivory
White, Dark Green, Sienna
Leaf Color in Winter
-
White, Dark Green, Sienna
Shape
Leaf Shape
Round
broad, flat
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Partial shade, Full Shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Poorly Drained
Well drained
Bloom Time
Early Spring, Late Winter
Fall, Late Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site
Pollution, Salt
Where to Plant?
Ground, Pot
Ground, Pot
How to Plant?
Divison, Stem Planting
Cuttings, root cutting, 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, Alkaline
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Poorly Drained
Well drained
Sun Exposure
Partial shade, Full Shade
Full Sun, Partial Sun, Partial shade
Pruning
Remove deadheads, Requires very little pruning, Shape and thin as needed
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Pests and diseases free, Red blotch
Coral Spot, Leaf spot, Red blotch
Plant Tolerance
Wet Site
Drought
Flowers
Showy
Insignificant
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
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
Birds
Allergy
-
Toxic
Uses
Aesthetic Uses
Showy Purposes
Bonsai, Cottage Garden, Ground Cover
Beauty Benefits
-
Skin irritation
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Fixes Nitrogen
Plant Benefits
Medicinal Uses
-
Antiasthamatic, Antitussive, Astringent
Part of Plant Used
Whole plant
Fruits, Leaves, Root, Stem
Other Uses
-
Used as Ornamental plant, Used for making hedge
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bog Garden, Container, Feature Plant, Water Gardens
Feature Plant, Hedges, Screening, Wind Break
Botanical Name
PETASITES japonicus 'Variegatus'
Elaeagnus pungens
Common Name
Giant Butterbur, Japanese Butterbur, Variegated Butterbur
Silverthorn
In Hindi
variegated butterbur
Silverthorn
In German
bunte Pestwurz
Silverthorn
In French
pétasite panachée
Silverthorn
In Spanish
butterbur abigarrado
Silverthorn
In Greek
διαφοροποιημένα butterbur
Silverthorn
In Portuguese
butterbur variegada
Silverthorn
In Polish
barwny Lepiężnik
Silverthorn
In Latin
varius butterbur
Silverthorn
Kingdom
Plantae
Plantae
Phylum
-
Magnoliophyta
Class
-
Magnoliopsida
Order
Asterales
Rhamnales
Family
Asteraceae
Elaeagnaceae
Genus
Petasites
Elaeagnus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Senecioneae
-
Subfamily
-
-
Number of Species
1770
1
27800
👆🏻