Life Span
Perennial
Perennial
Type
Tree
Fruit
Origin
United States, California
Europe, Central Asia, Western Asia
Types
-
-
Number of Varieties
815
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Fertile bottom land, Temperate Regions
USDA Hardiness Zone
6-9-9999
0
99
👆🏻
AHS Heat Zone
9-1
8-3
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
Upright/Erect
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
Green, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Purple, Black
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
-
Light Green
Shape
Leaf Shape
Irregular
Palmately Lobed
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
-
Loam
The pH of Soil
-
Acidic, Neutral, Alkaline
Soil Drainage
-
Well drained
Bloom Time
Spring
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings
Seedlings, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Keep the ground moist but not water-logged
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
-
Acidic, Neutral, Alkaline
Soil Type
-
Loam
Soil Drainage Capacity
-
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
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
10-10-10 diluted liquid fertilizer
Pests and Diseases
Red blotch
Aphids, Earwigs, Insects, Mildew, Red blotch, Rust, sawflies
Plant Tolerance
Drought
Cold climate
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
Medium
Foliage Sheen
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Birds
Allergy
Pollen
Asthma, Eczema, Food Allergy, Hives
Uses
Aesthetic Uses
Borders
-
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
Potassium, Rich in Iron, Vitamin B, Vitamin C
Part of Plant Used
Leaves, Seeds, Wood
Fruits, Leaves, Seeds
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Traditional medicine, Used as a nutritious food item, Used As Food, Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Edible, Fruit / Fruit Tree, Hedges, Mixed Border
Botanical Name
QUERCUS douglasii
RIBES nigrum
Common Name
Blue Oak
Black Currant
In Hindi
Blue Oak Tree
Black Currant
In German
Blaue Eiche
Black Currant
In French
Bleu Oak Tree
groseille noire
In Spanish
Azul del árbol de roble
negro Grosella
In Greek
Μπλε Oak Tree
μαύρη σταφίδα
In Portuguese
Carvalho azul
groselha-preta
In Polish
Niebieski Oak Tree
czarna porzeczka
In Latin
Blue quercum ligno
nigrum currants
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Rosales
Family
Fagaceae
Grossulariaceae
Genus
Quercus
Ribes
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Core eudicots, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
20150
1
27800
👆🏻