Life Span
Perennial
Annual and Perennial
Type
Tree
Shrub
Origin
United States, California
South Africa
Types
-
Cephalanthus occidentalis
Number of Varieties
87
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Boggy areas, Dappled Shade, Shady Edge, Sunny Edge, Woodland Garden Canopy
USDA Hardiness Zone
6-99-11
0
99
👆🏻
AHS Heat Zone
9-1
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
H1, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Spreading
Upright/Erect
Plant Size
Minimum Height
1,520.00 cm365.76 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm182.88 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Light Yellow, Ivory
Flower Color Modifier
Bicolor
-
Fruit Color
-
Brown
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
Shape
Leaf Shape
Irregular
Egg-shaped
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
Medium
Type of Soil
-
Loam, Sand
The pH of Soil
-
Acidic, Neutral
Soil Drainage
-
Average
Bloom Time
Spring
Early Spring, Spring, Late Spring, Winter, Late Winter
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Wet Site
Where to Plant?
Ground
Ground, Pot
How to Plant?
Seedlings
Seedlings, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Requires 4 to 8 inches of water above the soil line
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
-
Loam, Sand
Soil Drainage Capacity
-
Average
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 in early summer, Remove damaged leaves, Remove dead branches, Remove dead leaves, Trim each shoot back to the first set of leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
Drought
Wet Site
Flowers
✔
✘
✔
✘
Flower Petal Number
-
-
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
Butterflies
Allergy
Pollen
Toxic
Uses
Aesthetic Uses
Borders
Showy Purposes
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
Astringent, Diaphoretic, Diuretic, Emetic, Febrifuge, Laxative, Odontalgic, Ophthalmic, Tonic
Part of Plant Used
Leaves, Seeds, Wood
Bark, Fruits, Inner Bark, Root, Wood
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Bog Garden, Cutflower, Dried Flower, Everlasting, Feature Plant, Mixed Border, Tropical
Botanical Name
QUERCUS douglasii
BERZELIA lanuginosa
Common Name
Blue Oak
Buttonbush
In Hindi
Blue Oak Tree
Buttonbush shrub
In German
Blaue Eiche
Button Strauch
In French
Bleu Oak Tree
buttonbush arbuste
In Spanish
Azul del árbol de roble
arbusto buttonbush
In Greek
Μπλε Oak Tree
Buttonbush θάμνος
In Portuguese
Carvalho azul
arbusto Buttonbush
In Polish
Niebieski Oak Tree
Buttonbush krzew
In Latin
Blue quercum ligno
Frutex Buttonbush
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Rubiales
Family
Fagaceae
Bruniaceae
Genus
Quercus
Cephalanthus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
2012
1
27800
👆🏻