Life Span
Annual or Biennial
Perennial
Type
Grass
Herbaceous Perennial
Origin
South America, Micronesia, New Zealand
China, Japan, Korea
Types
Silver pampas grass, Uruguayan pampas grass, Purple pampas grass
-
Number of Varieties
2515
0
40000
👆🏻
Habitat
Lawn
Dappled Shade, meadows, Shady Edge, Sunny Edge, Woodland Garden
USDA Hardiness Zone
7-115-9
0
99
👆🏻
AHS Heat Zone
11 - 7
9-4
Sunset Zone
H1, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 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
Clump-Forming
Clump-Forming
Plant Size
Minimum Height
304.80 cm60.00 cm
0
3900
👆🏻
Minimum Width
182.88 cm120.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Pink, Violet, White hair and some brown spots on margins and at tips
Light Yellow, Ivory
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green, Light Green, Dark Green
Green
Leaf Color in Summer
Light Green
Green
Leaf Color in Fall
Green, Light Green, Dark Green
Green
Leaf Color in Winter
Dark Green, Tan
-
Shape
Leaf Shape
Long and slender with very sharp edges
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun
Partial shade, Full Shade
Growth Rate
Fast
Fast
Type of Soil
Loam
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Poorly Drained
Bloom Time
Summer, Fall
Early Spring, Late Winter
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Salt
Wet Site
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings, Stem Planting
Divison, Seedlings
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Average Water Needs, Needs watering once a week, Reduce water once established, Water more frequently during periods of extreme drought
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
Loam
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Poorly Drained
Sun Exposure
Full Sun
Partial shade, Full Shade
Pruning
Prune in late winter, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove deadheads
Remove the old foliage
Fertilizers
Apply 10-10-10 amount, Nitrogen, Phosphorous, Potassium
Use a fertilizer ratio of 16-4-8
Pests and Diseases
Red blotch
-
Plant Tolerance
Drought, Salt
Drought
Flowers
✔
✘
✔
✘
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
Fine
Bold
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
Sometimes
Sometimes
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Rats, Snakes
-
Allergy
Itchiness, Skin cuts
-
Uses
Aesthetic Uses
Showy Purposes
Bog Garden, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Provides ground cover
Air purification
Plant Benefits
Medicinal Uses
-
Antiasthamatic, Antispasmodic, Expectorant, Poultice
Part of Plant Used
Flowers, Leaves
Flowers, Stem
Other Uses
Fibre, Food for animals, Used in paper industry
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
Dried Flower / Everlasting, Cutflower, Dried Flower/Everlasting, Feature Plant, Foundation, Groundcover, Mixed Border, Screening / Wind Break
Bog Garden, Container, Feature Plant, Water Gardens
Botanical Name
CORTADERIA
PETASITES japonicus
Common Name
Pampas Grass
Giant Butterbur, Japanese Butterbur
In Hindi
Pampas grass
Giant Butterbur
In German
Pampasgrass
Riesen Pestwurz
In French
herbe de la pampa
géant Butterbur
In Spanish
cortaderas
gigante petasita
In Greek
γρασίδι Πάμπα
Giant Butterbur
In Portuguese
grama de Pampas
Carrapicho gigante
In Polish
Pampas trawy
Giant Lepiężnik
In Latin
Pampas herba
Giant Butterbur
Kingdom
Plantae
Plantae
Phylum
Vascular plant
Magnoliophyta
Class
Liliopsida
Magnoliopsida
Order
Poales
Asterales
Family
Poaceae
Asteraceae
Genus
Cortaderia
Petasites
Clade
Angiosperms, Commelinids, Monocots
Angiosperms, Asterids, Eudicots
Tribe
Danthonieae
Senecioneae
Subfamily
Danthonioideae
Asteroideae
Number of Species
251
1
27800
👆🏻