Life Span
Perennial
Perennial
Type
Tree
Shrub
Origin
United States, California
Russia/Siberia, China
Types
-
Dwarf Siberian Peashrub, Sutherland Peashrub, Weeping Siberian Peashrub
Number of Varieties
85
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Forest edges, gully slopes, Open Forest, Riverbanks, Sandy areas
USDA Hardiness Zone
6-92-8
0
99
👆🏻
AHS Heat Zone
9-1
8-1
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
A1, A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 12
Habit
Spreading
Narrow Upright/Fastigiate
Plant Size
Minimum Height
1,520.00 cm460.00 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm300.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Yellow
Flower Color Modifier
Bicolor
-
Fruit Color
-
Brown
Leaf Color in Spring
Green, Blue Green
Light Green
Leaf Color in Summer
Green, Blue Green
Light Green
Leaf Color in Fall
Yellow, Orange, Pink
Light Green, Light Yellow
Leaf Color in Winter
-
-
Shape
Leaf Shape
Irregular
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Slow
Fast
Type of Soil
-
Clay, Loam
The pH of Soil
-
Acidic, Neutral, Alkaline
Soil Drainage
-
Well drained
Bloom Time
Spring
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought, Salt
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Cuttings, Layering, Seedlings
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Average Water Needs
Keep the ground moist but not water-logged, occasional watering once established
In Summer
Lots of watering
Moderate
In Spring
Moderate
Ample Water
In Winter
Average Water
Average Water
Soil
Soil pH
-
Acidic, Neutral, Alkaline
Soil Type
-
Clay, Loam
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 dead branches, Remove dead or diseased plant parts
Fertilizers
All-Purpose Liquid Fertilizer
fertilize in spring
Pests and Diseases
Red blotch
blister beetles, Septoria leaf spot, stem decay
Plant Tolerance
Drought
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
Medium
Fine
Foliage Sheen
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Bees, Hummingbirds
Allergy
Pollen
Diarrhea, Vomiting
Uses
Aesthetic Uses
Borders
-
Beauty Benefits
-
used as a dye
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Erosion control, Fixes Nitrogen, Food for animals, Shelter for wildlife, Windbreak
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
Cancer, Dysmenorrhea, Gynaecological
Part of Plant Used
Leaves, Seeds, Wood
Leaves, Seeds
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Fibre, For making oil, Shelterbelt, Used as a dye, Used for making informal hedge
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Hedges, Mixed Border, Screening, Wind Break
Botanical Name
QUERCUS douglasii
CARAGANA arborescens
Common Name
Blue Oak
Siberian peashrub, Siberian pea-tree, caragana
In Hindi
Blue Oak Tree
Siberian peashrub
In German
Blaue Eiche
Gemeiner Erbsenstrauch
In French
Bleu Oak Tree
Caraganier de Sibérie
In Spanish
Azul del árbol de roble
Siberian Peashrub
In Greek
Μπλε Oak Tree
Siberian Peashrub
In Portuguese
Carvalho azul
Siberian peashrub
In Polish
Niebieski Oak Tree
Karagana syberyjska
In Latin
Blue quercum ligno
Siberian Peashrub
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Fabales
Family
Fagaceae
Fabaceae
Genus
Quercus
Caragana
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
2025
1
27800
👆🏻