Life Span
Perennial
Annual or Biennial
Type
Tree
Grass
Origin
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Texas
South America, Micronesia, New Zealand
Types
Quercus phellos, Quercus nigra
Silver pampas grass, Uruguayan pampas grass, Purple pampas grass
Number of Varieties
5525
0
40000
👆🏻
Habitat
Hot climate regions, low mountains, Tropical regions
Lawn
USDA Hardiness Zone
6-97-11
0
99
👆🏻
AHS Heat Zone
9-3
11 - 7
Sunset Zone
2a, 2b, 3a, 3b, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21
H1, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Clump-Forming
Plant Size
Minimum Height
1,220.00 cm304.80 cm
0
3900
👆🏻
Minimum Width
910.00 cm182.88 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Light Green, Chartreuse
Pink, Violet, White hair and some brown spots on margins and at tips
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Tan, Chocolate
-
Leaf Color in Spring
Green, Light Green
Green, Light Green, Dark Green
Leaf Color in Summer
Green, Dark Green
Light Green
Leaf Color in Fall
Yellow, Orange, Sandy Brown
Green, Light Green, Dark Green
Leaf Color in Winter
-
Dark Green, Tan
Shape
Leaf Shape
Irregular
Long and slender with very sharp edges
Thorns
✔
✘
✔
✘
Plant Season
Spring, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam, Sand
Loam
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Spring, Late Spring
Summer, Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site, Pollution, Soil Compaction
Drought, Salt
Where to Plant?
Ground
Ground
How to Plant?
Grafting, Seedlings
Seedlings, Stem Planting
Plant Maintenance
Low
Low
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Does not require lot of watering
Average Water Needs, Needs watering once a week, Reduce water once established, Water more frequently during periods of extreme drought
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
Soil Type
Clay, Loam, Sand
Loam
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun
Pruning
cut main flower spike, Prune every year, Remove damaged leaves, Remove dead branches, Remove dead leaves
Prune in late winter, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove deadheads
Fertilizers
All-Purpose Liquid Fertilizer, Bonemeal, fertilize in growing season
Apply 10-10-10 amount, Nitrogen, Phosphorous, Potassium
Pests and Diseases
Azalea leaf gall, Fusarium leaf spot, Leaf rust, Mildew
Red blotch
Plant Tolerance
Heat Tolerance, Humidity, Salt and Soil Compaction
Drought, Salt
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
Fine
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Birds, Rats, Snakes
Allergy
Eczema, Rhinitis, Runny nose
Itchiness, Skin cuts
Uses
Aesthetic Uses
Landscape Designing, Showy Purposes
Showy Purposes
Beauty Benefits
Blood purifying, Reduce Bruises, Weightloss
-
Edible Uses
Sometimes
Insignificant
Environmental Uses
Air purification
Air purification, Provides ground cover
Plant Benefits
Medicinal Uses
Gout, Obesity, Snoring
-
Part of Plant Used
Bark, Stem
Flowers, Leaves
Other Uses
Animal Feed, Biodiesel, Recovering internal injuries
Fibre, Food for animals, Used in paper industry
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Shade Trees, Street Trees
Dried Flower / Everlasting, Cutflower, Dried Flower/Everlasting, Feature Plant, Foundation, Groundcover, Mixed Border, Screening / Wind Break
Botanical Name
QUERCUS phellos
CORTADERIA
Common Name
Willow Oak
Pampas Grass
In Hindi
Overcup ओक
Pampas grass
In German
Overcup Oak
Pampasgrass
In French
Overcup Oak
herbe de la pampa
In Spanish
Overcup Roble
cortaderas
In Greek
Overcup Oak
γρασίδι Πάμπα
In Portuguese
Overcup Oak
grama de Pampas
In Polish
Overcup Dąb
Pampas trawy
In Latin
Oryza
Pampas herba
Kingdom
Plantae
Plantae
Phylum
-
Vascular plant
Class
Magnoliopsida
Liliopsida
Order
Fagales
Poales
Family
Fagaceae
Poaceae
Genus
Quercus
Cortaderia
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Commelinids, Monocots
Tribe
-
Danthonieae
Subfamily
Amaryllidoideae
Danthonioideae
Number of Species
40025
1
27800
👆🏻