Life Span
Perennial
Perennial
Type
Tree
Sedge or Rush
Origin
United States, California
World/Pandemic, North America, Europe, Russia/Siberia, Africa, Asia
Types
-
-
Number of Varieties
81
0
40000
👆🏻
Habitat
Woodland Garden Canopy
All sorts of environments, Banks, ditches, marshes, Shores of rivers or lakes
USDA Hardiness Zone
6-96-9
0
99
👆🏻
AHS Heat Zone
9-1
9-6
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
H1, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Spreading
Clump-Forming
Plant Size
Minimum Height
1,520.00 cm45.70 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm61.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Brown
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green, Blue Green
Green
Leaf Color in Summer
Green, Blue Green
Green
Leaf Color in Fall
Yellow, Orange, Pink
Green
Leaf Color in Winter
-
Green, Tan, Sandy Brown
Shape
Leaf Shape
Irregular
Long hair-like leaves
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Slow
Fast
Type of Soil
-
Clay, Loam, Sand
The pH of Soil
-
Acidic, Neutral
Soil Drainage
-
Poorly Drained
Bloom Time
Spring
Early Summer, Summer, Late Summer, Early Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground, Pot
How to Plant?
Seedlings
Divison, reseeds
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Does not require regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
-
Acidic, Neutral
Soil Type
-
Clay, Loam, Sand
Soil Drainage Capacity
-
Poorly Drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
-
Plant Tolerance
Drought
Drought
Flowers
Insignificant
Insignificant
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
-
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Bumblebees, Flying insects
Allergy
Pollen
-
Uses
Aesthetic Uses
Borders
Informal Hedge, Woodland margins
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
woven into the covering of tatami mats
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Bog Garden, Container, Mixed Border, Water Gardens
Botanical Name
QUERCUS douglasii
JUNCUS effusus f.Spiral
Common Name
Blue Oak
Curly wurly
In Hindi
Blue Oak Tree
Corkscrew Rush
In German
Blaue Eiche
Corkscrew Rush
In French
Bleu Oak Tree
Corkscrew Rush
In Spanish
Azul del árbol de roble
Corkscrew Rush
In Greek
Μπλε Oak Tree
Corkscrew Rush
In Portuguese
Carvalho azul
Corkscrew Rush
In Polish
Niebieski Oak Tree
Corkscrew Rush
In Latin
Blue quercum ligno
Corkscrew Rush
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Fagales
Poales
Family
Fagaceae
Juncaceae
Genus
Quercus
Juncus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Commelinids, Monocots
Tribe
-
-
Subfamily
-
-
Number of Species
2025
1
27800
👆🏻