Life Span
Perennial
Perennial
Type
Tree
Herb, Perennial
Origin
United States, California
Southern Europe
Types
-
-
Number of Varieties
81
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Desert, Temperate Regions
USDA Hardiness Zone
6-95-10
0
99
👆🏻
AHS Heat Zone
9-1
-
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
-
Habit
Spreading
Clump-Forming
Plant Size
Minimum Height
1,520.00 cm120.00 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm120.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green, Blue Green
Green, Dark Green
Leaf Color in Summer
Green, Blue Green
Green, Dark Green
Leaf Color in Fall
Yellow, Orange, Pink
Light Green
Leaf Color in Winter
-
Green, Dark Green
Shape
Leaf Shape
Irregular
Heart shaped, toothed with three to five lobes
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
-
Growing Conditions
Sunlight
Full Sun, Partial Sun
Partial shade
Growth Rate
Slow
Medium
Type of Soil
-
Rich
The pH of Soil
-
Neutral, Slightly Acidic
Soil Drainage
-
Well drained
Bloom Time
Spring
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Seedlings, Stem Planting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Do Not over Water
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Average Water
In Winter
Average Water
Ample Water
Soil
Soil pH
-
Neutral, Slightly Acidic
Soil Type
-
Loam, Sand
Soil Drainage Capacity
-
Well drained
Sun Exposure
Full Sun, Partial 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
✔
✘
✔
✘
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
Coarse
Foliage Sheen
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
-
Allergy
Pollen
-
Uses
Aesthetic Uses
Borders
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
-
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
Skin Disorders
Part of Plant Used
Leaves, Seeds, Wood
-
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Herb
Botanical Name
QUERCUS douglasii
HABERLEA
Common Name
Blue Oak
Haberlea, Hardy Africa Violet
In Hindi
Blue Oak Tree
Haberlea
In German
Blaue Eiche
Haberlea
In French
Bleu Oak Tree
Haberlea
In Spanish
Azul del árbol de roble
Haberlea rhodopensis
In Greek
Μπλε Oak Tree
Haberlea
In Portuguese
Carvalho azul
Haberlea
In Polish
Niebieski Oak Tree
Haberlea
In Latin
Blue quercum ligno
Haberlea
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Lamiales
Family
Fagaceae
Gesnariaceae
Genus
Quercus
Haberlea
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
2020
1
27800
👆🏻