Life Span
Annual
Perennial
Type
Fern
Herbaceous Perennial
Origin
South America, Southern Africa, India, Australia, New Zealand
China, Japan, Korea
Types
-
-
Number of Varieties
3015
0
40000
👆🏻
Habitat
Bog Garden, Boggy areas, Swamps
Dappled Shade, meadows, Shady Edge, Sunny Edge, Woodland Garden
USDA Hardiness Zone
8-115-9
0
99
👆🏻
AHS Heat Zone
12-8
9-4
Sunset Zone
H1, H2, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24
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
45.70 cm60.00 cm
0
3900
👆🏻
Minimum Width
60.00 cm120.00 cm
0
6350
👆🏻
Plant Color
Flower Color
-
Light Yellow, Ivory
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Dark Green
Green
Leaf Color in Summer
Dark Green
Green
Leaf Color in Fall
Dark Green
Green
Leaf Color in Winter
Dark Green
-
Shape
Leaf Shape
Odd Pinnate
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Shade, Partial shade
Partial shade, Full Shade
Growth Rate
Medium
Fast
Type of Soil
Clay, Loam
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Poorly Drained
Bloom Time
Fall, Spring, Summer
Early Spring, Late Winter
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Wet Site
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
By dividing rhizomes, tubers
Divison, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires regular watering
Water once every two or three weeks
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Type
Clay, Loam
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Poorly Drained
Sun Exposure
Full Shade, Partial shade
Partial shade, Full Shade
Pruning
Prune for size control
Remove the old foliage
Fertilizers
All-Purpose Liquid Fertilizer, Does not require fertilizer once established
Use a fertilizer ratio of 16-4-8
Pests and Diseases
Pests and diseases free, Red blotch
-
Plant Tolerance
Shade areas, Variety of soil types
Drought
Flowers
-
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
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
Sometimes
Sometimes
Self-Sowing
✔
✘
✔
✘
Attracts
Aphids, Deers, Scale Insects
-
Allergy
-
-
Uses
Aesthetic Uses
Borders, Formal Garden, Ground Cover
Bog Garden, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
-
Antiasthamatic, Antispasmodic, Expectorant, Poultice
Part of Plant Used
Whole plant
Flowers, Stem
Other Uses
useful as a ground cover
Can be boiled and seasoned, pickled, Used as umbrellas by Japanese children, Used as walking sticks, Used like rhubarb
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Cutflower, Foundation, Groundcover, Houseplant, Mixed Border, Tropical
Bog Garden, Container, Feature Plant, Water Gardens
Botanical Name
RUMOHRA adiantiformis
PETASITES japonicus
Common Name
leatherleaf fern
leathery shieldfern
iron fern
7-weeks-fern
climbing shield fern
Giant Butterbur, Japanese Butterbur
In Hindi
leatherleaf
Giant Butterbur
In German
Leatherleaf
Riesen Pestwurz
In French
Leatherleaf
géant Butterbur
In Spanish
leatherleaf
gigante petasita
In Greek
Leatherleaf
Giant Butterbur
In Portuguese
leatherleaf
Carrapicho gigante
In Polish
Leatherleaf
Giant Lepiężnik
In Latin
Leatherleaf
Giant Butterbur
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Polypodiopsida
Magnoliopsida
Order
Polypodiales
Asterales
Family
Dryopteridaceae
Asteraceae
Genus
Rumohra
Petasites
Clade
-
Angiosperms, Asterids, Eudicots
Tribe
-
Senecioneae
Subfamily
-
Asteroideae
Number of Species
501
1
27800
👆🏻