Life Span
Perennial
Perennial
Type
Tree
Grass
Origin
United States, California
Southern Europe
Types
-
-
Number of Varieties
82
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Hills, Open grasslands, Open Plains, Slopes
USDA Hardiness Zone
6-98-10
0
99
👆🏻
AHS Heat Zone
9-1
9 - 5
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Spreading
Clump-Forming
Plant Size
Minimum Height
1,520.00 cm61.00 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Gray, Silver, Yellow
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green, Blue Green
Green, Blue Green
Leaf Color in Summer
Green, Blue Green
Light Green
Leaf Color in Fall
Yellow, Orange, Pink
Green, Blue Green, Yellow green
Leaf Color in Winter
-
-
Shape
Leaf Shape
Irregular
Grass like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Slow
Medium
Type of Soil
-
Loam, Sand
The pH of Soil
-
Neutral, Alkaline
Soil Drainage
-
Well drained
Bloom Time
Spring
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
reseeds, Root Division
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Drought Tolerant, Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
-
Neutral, Alkaline
Soil Type
-
Loam, Sand
Soil Drainage Capacity
-
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
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
Insignificant
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
Fine
Foliage Sheen
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
pollinators
Allergy
Pollen
Congestion, Rhinitis, Runny nose, Watery eyes
Uses
Aesthetic Uses
Borders
Borders, Informal Hedge
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Air purification
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
-
Part of Plant Used
Leaves, Seeds, Wood
-
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Dried heads are used in floristry, suitable for cutting
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Cutflower, Dried Flower/Everlasting, Feature Plant, Mixed Border, Wildflower
Botanical Name
QUERCUS douglasii
STIPA barbata
Common Name
Blue Oak
Silver Feather Grass
In Hindi
Blue Oak Tree
Silver Feather Grass
In German
Blaue Eiche
Miscanthus sinensis 'Silberfeder'
In French
Bleu Oak Tree
Argent Plume Herbe
In Spanish
Azul del árbol de roble
Silver Feather Grass
In Greek
Μπλε Oak Tree
Silver Feather Grass
In Portuguese
Carvalho azul
Prata Pena Relva
In Polish
Niebieski Oak Tree
Silver Feather Grass
In Latin
Blue quercum ligno
Silver Feather Grass
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Liliopsida
Order
Fagales
Poales
Family
Fagaceae
Poaceae
Genus
Quercus
Stipa
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Commelinids, Monocots
Tribe
-
-
Subfamily
-
-
Number of Species
2020
1
27800
👆🏻