Life Span
Perennial
Annual
Type
Tree
Vegetable
Origin
United States, California
Europe
Types
-
-
Number of Varieties
85
0
40000
👆🏻
Habitat
Woodland Garden Canopy
agricultural areas, Moist Soils
USDA Hardiness Zone
6-94-10
0
99
👆🏻
AHS Heat Zone
9-1
9-3
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, H1, H2, 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
Upright/Erect
Plant Size
Minimum Height
1,520.00 cm15.20 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm15.70 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Yellow
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Sienna, Black
Leaf Color in Spring
Green, Blue Green
Green, Light Green
Leaf Color in Summer
Green, Blue Green
White, Green, Dark Green
Leaf Color in Fall
Yellow, Orange, Pink
White, Green, Dark Green
Leaf Color in Winter
-
White, Green, Dark Green
Shape
Leaf Shape
Irregular
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, 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
-
Well drained
Bloom Time
Spring
Spring, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Allow to dry out slightly between watering, Do not water the foliage, Keep the Soil well drained
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
-
Well 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
Remove dead or diseased plant parts
Fertilizers
All-Purpose Liquid Fertilizer
8-8-8, since leafy plants, use higher nitrogen content fertilizer
Pests and Diseases
Red blotch
Aphids, Beetles, Cabbage looper, Downy mildew, Fusarium leaf spot, Rust
Plant Tolerance
Drought
Full Sun, Humidity, Shallow soil
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
Medium
Foliage Sheen
-
-
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Caterpillar, Mites
Allergy
Pollen
Diarrhea, Dizziness, Nausea
Uses
Aesthetic Uses
Borders
-
Beauty Benefits
-
Anti-ageing, Hair Conditioner, Skin cleanser
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Fixes Nitrogen, Food for animals
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
Aging, Anti-oxidant, Digestion problems, Eliminate toxins, Nutritive, Obesity, Rich in Potassium
Part of Plant Used
Leaves, Seeds, Wood
Leaf Stalks, Leaves
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Culinary use, Sauces, Used to promote healthy blood flow during menstruation
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Container, Edible, Herb / Vegetable, Wildflower
Botanical Name
QUERCUS douglasii
BRASSICA rapa( Chinensis Group)
Common Name
Blue Oak
Bok Choy, Chinese Cabbage, Choy Sum, Pak Choi
In Hindi
Blue Oak Tree
choy sum
In German
Blaue Eiche
choy sum
In French
Bleu Oak Tree
choy sum
In Spanish
Azul del árbol de roble
choy sum
In Greek
Μπλε Oak Tree
choy sum
In Portuguese
Carvalho azul
choy sum
In Polish
Niebieski Oak Tree
choy sum
In Latin
Blue quercum ligno
choy sum
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Capparales
Family
Fagaceae
Brassicaceae
Genus
Quercus
Brassica
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Tribe
-
-
Subfamily
-
-
Number of Species
2018
1
27800
👆🏻