Life Span
Perennial
Perennial
Origin
China, Japan, Korea
Europe, Asia
Types
Not Available
Blue Oat grass
Habitat
Wet lands
Cropland, gardens, Grassland, Roadsides
USDA Hardiness Zone
5-9
4-9
AHS Heat Zone
9-4
Not Available
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 15, 16, 17, 23, 24
Habit
Clump-Forming
Clump-Forming
Flower Color
Light Yellow, Ivory
Brown
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Not Available
Brown
Leaf Color in Spring
Green, Purple, Burgundy
Gray Green
Leaf Color in Summer
Green, Purple
Light Green
Leaf Color in Fall
Green, Purple
Dark Green
Leaf Color in Winter
Not Available
Tan, Brown
Leaf Shape
Round
Grass like
Plant Season
Spring, Summer, Fall
Not Available
Sunlight
Partial shade, Full Shade
Full Sun, Partial Sun
Type of Soil
Clay, Loam, Sand
Loam
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Poorly Drained
Average
Bloom Time
Early Spring, Late Winter
Early Summer
Tolerances
Wet Site
Drought
Where to Plant?
Ground
Ground
How to Plant?
By dividing rhizomes, tubers
Seedlings
Plant Maintenance
Medium
Medium
Watering Requirements
Requires consistently moist soil
Does not require lot of watering, Water occasionally
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Loam
Soil Drainage Capacity
Poorly Drained
Average
Sun Exposure
Partial shade, Full Shade
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
Drought
Drought
Flowers
Showy
Not Available
Flower Petal Number
Not Available
Single
Foliage Texture
Bold
Not Available
Foliage Sheen
Glossy
Matte
Attracts
Not Available
Not Available
Allergy
Not Available
Asthma, Itchy eyes
Aesthetic Uses
Ground Cover
Not Used For Aesthetic Purpose
Beauty Benefits
Not Available
Not Available
Environmental Uses
Air purification
Air purification
Medicinal Uses
Asthma, Chronic fatigue
Arthritis, Headache, Stomach pain
Part of Plant Used
Leaves, Seeds, Stem
Whole plant
Other Uses
Used as Ornamental plant
Used as a nutritious food item
Used As Indoor Plant
Sometimes
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Bog Garden, Container, Water Gardens
Bedding Plant, Feature Plant, Groundcover
Botanical Name
PETASITES japonicus 'Purpureus'
ARRHENATHERUM
Common Name
Giant Butterbur, Japanese Butterbur, Purple Butterbur
Oatgrass
In Hindi
Purple Butterbur
जई घास
In German
Lila Pestwurz
Ährengras
In French
Violet Butterbur
Folle avoine
In Spanish
púrpura petasita
oat Grass
In Greek
Purple Butterbur
βρώμη Grass
In Portuguese
roxo Carrapicho
aveia-
In Polish
Purpurowy Lepiężnik
Owies trawa
In Latin
Purple Butterbur
oat Grass
Phylum
Magnoliophyta
Not Available
Class
Magnoliopsida
Liliopsida
Family
Asteraceae
Poaceae
Genus
Petasites
Danthonia
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Commelinids, Monocots
Tribe
Senecioneae
Aveneae
Subfamily
Not Available
Danthonioideae
Number of Species
Not Available
Not Available
Season and Care of Purple Butterbur and Oatgrass
Season and care of Purple Butterbur and Oatgrass is important to know. While considering everything about Purple Butterbur and Oatgrass Care, growing season is an essential factor. Purple Butterbur season is Spring, Summer and Fall and Oatgrass season is Spring, Summer and Fall. The type of soil for Purple Butterbur is Clay, Loam, Sand and for Oatgrass is Loam while the PH of soil for Purple Butterbur is Acidic, Neutral, Alkaline and for Oatgrass is Acidic, Neutral.
Purple Butterbur and Oatgrass Physical Information
Purple Butterbur and Oatgrass physical information is very important for comparison. Purple Butterbur height is 60.00 cm and width 120.00 cm whereas Oatgrass height is 20.50 cm and width 30.50 cm. The color specification of Purple Butterbur and Oatgrass are as follows:
Purple Butterbur flower color: Light Yellow and Ivory
Purple Butterbur leaf color: Green, Purple and Burgundy
Oatgrass flower color: Brown
- Oatgrass leaf color: Gray Green
Care of Purple Butterbur and Oatgrass
Care of Purple Butterbur and Oatgrass include pruning, fertilizers, watering etc. Purple Butterbur pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves and Oatgrass pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Purple Butterbur needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Oatgrass needs Lots of watering and in winter, it needs Average Water.