Life Span
Perennial
  
Annual
  
Type
Herbaceous Perennial
  
Perennial
  
Origin
China, Japan, Korea
  
Europe, Asia
  
Types
Not Available
  
Winged flax, Bristle flax, Fairy flax
  
Habitat
Lake Sides, River side
  
Cultivated Beds
  
USDA Hardiness Zone
5-9
  
4-8
  
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
  
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
  
Habit
Clump-Forming
  
Clump-Forming
  
Plant Size
  
  
Plant Color
  
  
Flower Color
Light Yellow, Ivory
  
Blue, Sky Blue
  
Flower Color Modifier
Bicolor
  
Bicolor
  
Fruit Color
Not Available
  
Tan
  
Leaf Color in Spring
Green
  
Green, Blue Green
  
Leaf Color in Summer
Green
  
Green, Blue Green
  
Leaf Color in Fall
Green
  
Green, Blue Green
  
Leaf Color in Winter
Not Available
  
Light Green
  
Shape
  
  
Leaf Shape
Orbiculate
  
Narrow
  
Thorns
No
  
No
  
Plant Season
Spring, Summer, Fall
  
Summer
  
Growing Conditions
  
  
Sunlight
Partial shade, Full Shade
  
Full Sun, Partial Sun, Partial shade
  
Growth Rate
Fast
  
Fast
  
Type of Soil
Clay, Loam, Sand
  
Loam, Sand
  
The pH of Soil
Acidic, Neutral, Alkaline
  
Neutral, Alkaline
  
Soil Drainage
Poorly Drained
  
Well drained
  
Bloom Time
Early Spring, Late Winter
  
Early Summer, Summer
  
Repeat Bloomer
No
  
Yes
  
Tolerances
Wet Site
  
Drought
  
Where to Plant?
Container, Ground
  
Ground
  
How to Plant?
From Rhizomes
  
Seedlings
  
Plant Maintenance
Medium
  
Medium
  
Watering Plants
  
  
Watering Requirements
Keep ground moist, Requires consistently moist soil
  
Average Water Needs, Requires watering in the growing season
  
In Summer
Lots of watering
  
Lots of watering
  
In Spring
Moderate
  
Moderate
  
In Winter
Average Water
  
Average Water
  
Soil
  
  
Soil pH
Acidic, Neutral, Alkaline
  
Neutral, Alkaline
  
Soil Type
Clay, Loam, Sand
  
Loam, Sand
  
Soil Drainage Capacity
Poorly Drained
  
Well drained
  
Sun Exposure
Partial shade, Full Shade
  
Full Sun, Partial Sun, Partial shade
  
Pruning
Cut or pinch the stems, Remove damaged leaves, Remove dead branches, Remove dead leaves
  
Midseason Pruning, Prune in fall, Remove damaged leaves, Remove dead branches, Remove dead leaves
  
Fertilizers
All-Purpose Liquid Fertilizer, Requires high amount of nitrogen
  
All-Purpose Liquid Fertilizer
  
Pests and Diseases
Red blotch
  
Red blotch
  
Plant Tolerance
Drought, Drought and Wet Site
  
Drought
  
Flowers
Showy
  
Yes
  
Flower Petal Number
Not Available
  
Single
  
Fruits
  
  
Showy Fruit
No
  
No
  
Edible Fruit
No
  
No
  
Fragrance
  
  
Fragrant Flower
Yes
  
No
  
Fragrant Fruit
No
  
No
  
Fragrant Leaf
No
  
No
  
Fragrant Bark/Stem
No
  
No
  
Showy Foliage
Yes
  
No
  
Showy Bark
No
  
No
  
Foliage Texture
Bold
  
Fine
  
Foliage Sheen
Glossy
  
Matte
  
Evergreen
No
  
No
  
Invasive
Sometimes
  
No
  
Self-Sowing
No
  
Yes
  
Attracts
Not Available
  
Bees, Butterflies, Flies
  
Allergy
Not Available
  
Cyanide poisoning
  
Uses
  
  
Aesthetic Uses
Beautification
  
Showy Purposes
  
Beauty Benefits
Not Available
  
Good for skin
  
Edible Uses
Yes
  
Yes
  
Environmental Uses
Air purification
  
Air purification
  
Plant Benefits
  
  
Medicinal Uses
Antiasthamatic, Expectorant, Miscellany
  
Antirheumatic, Carminative, Emollient, Ophthalmic, Poultice, Stomachic
  
Part of Plant Used
Flowers, Stem
  
Flowers, Seeds
  
Other Uses
Not Available
  
Cosmetics, Fibre, For making oil, Used in paper industry
  
Used As Indoor Plant
No
  
Not Available
  
Used As Outdoor Plant
Yes
  
Yes
  
Garden Design
Bog Garden, Container, Water Gardens
  
Mixed Border, Rock Garden, Wall, Wildflower
  
Botanical Name
PETASITES japonicus 'Argentea'
  
LINUM perenne
  
Common Name
Giant Butterbur, Japanese Butterbur, Variegated Butterbur
  
Perennial Flax, Blue flax, Alpine flax
  
In Hindi
Japanese Butterbur
  
Blue Flax Plant
  
In German
japanische Pestwurz
  
Blaue Flachspflanze
  
In French
Japanese Butterbur
  
Bleu lin Plante
  
In Spanish
petasita japonesa
  
Planta de lino azul
  
In Greek
Japanese Butterbur
  
Μπλε Λίνο Φυτών
  
In Portuguese
Carrapicho japonês
  
Planta do linho azul
  
In Polish
japoński Lepiężnik
  
Niebieski roślin lnu
  
In Latin
Japanese Butterbur
  
Blue linum Planta
  
Kingdom
Plantae
  
Plantae
  
Phylum
Tracheophyta
  
Magnoliophyta
  
Class
Magnoliopsida
  
Magnoliopsida
  
Order
Asterales
  
Linales
  
Family
Asteraceae
  
Linaceae
  
Genus
Petasites
  
Linum
  
Clade
Angiosperms, Asterids, Eudicots
  
Angiosperms, Eudicots, Rosids
  
Tribe
Not Available
  
Not Available
  
Subfamily
Not Available
  
Not Available
  
Number of Species
Not Available
  
Not Available
  
Season and Care of Japanese Butterbur and Blue Flax
Season and care of Japanese Butterbur and Blue Flax is important to know. While considering everything about Japanese Butterbur and Blue Flax Care, growing season is an essential factor. Japanese Butterbur season is Spring, Summer and Fall and Blue Flax season is Spring, Summer and Fall. The type of soil for Japanese Butterbur is Clay, Loam, Sand and for Blue Flax is Loam, Sand while the PH of soil for Japanese Butterbur is Acidic, Neutral, Alkaline and for Blue Flax is Neutral, Alkaline.
Japanese Butterbur and Blue Flax Physical Information
Japanese Butterbur and Blue Flax physical information is very important for comparison. Japanese Butterbur height is 60.00 cm and width 120.00 cm whereas Blue Flax height is 45.72 cm and width 45.72 cm. The color specification of Japanese Butterbur and Blue Flax are as follows:
Japanese Butterbur flower color: Light Yellow and Ivory
Japanese Butterbur leaf color: Green
Blue Flax flower color: Blue and Sky Blue
- Blue Flax leaf color: Green and Blue Green
Care of Japanese Butterbur and Blue Flax
Care of Japanese Butterbur and Blue Flax include pruning, fertilizers, watering etc. Japanese Butterbur pruning is done Cut or pinch the stems, Remove damaged leaves, Remove dead branches and Remove dead leaves and Blue Flax pruning is done Midseason Pruning, Prune in fall, Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Japanese Butterbur needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Blue Flax needs Lots of watering and in winter, it needs Average Water.