Life Span
Annual
Perennial
Type
Perennial
Tree
Origin
Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, Canada, Mexico
United States, California
Types
Shrub
-
Number of Varieties
708
0
40000
👆🏻
Habitat
Sunny Edge
Woodland Garden Canopy
USDA Hardiness Zone
3-96-9
0
99
👆🏻
AHS Heat Zone
8-1
9-1
Sunset Zone
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Spreading
Plant Size
Minimum Height
60.00 cm1,520.00 cm
0
3900
👆🏻
Minimum Width
45.70 cm1,370.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Purple, Pink, Rose, Violet
Red, Yellow green
Flower Color Modifier
-
Bicolor
Fruit Color
Red, Green, Light Green
-
Leaf Color in Spring
Green
Green, Blue Green
Leaf Color in Summer
Green
Green, Blue Green
Leaf Color in Fall
Green
Yellow, Orange, Pink
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Lance shaped
Irregular
Thorns
✔
✘
✔
✘
Plant Season
Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Fast
Slow
Type of Soil
Clay, Loam
-
The pH of Soil
Acidic, Neutral, Alkaline
-
Soil Drainage
Average
-
Bloom Time
Summer, Late Summer, Early Fall
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Root Division
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires regular watering
Average Water Needs
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
Clay, Loam
-
Soil Drainage Capacity
Average
-
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
Drought
Drought
Flowers
Showy
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
Glossy
-
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds
Birds
Allergy
-
Pollen
Uses
Aesthetic Uses
Showy Purposes
Borders
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
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
Part of Plant Used
Flowers
Leaves, Seeds, Wood
Other Uses
Showy Purposes
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Cutflower, Mixed Border, Wildflower
Feature Plant, Shade Trees, Street Trees
Botanical Name
PHYSOSTEGIA
QUERCUS douglasii
Common Name
Physostegia
Blue Oak
In Hindi
Physostegia
Blue Oak Tree
In German
Physostegia
Blaue Eiche
In French
Physostegia
Bleu Oak Tree
In Spanish
Physostegia
Azul del árbol de roble
In Greek
Physostegia
Μπλε Oak Tree
In Portuguese
Physostegia
Carvalho azul
In Polish
Physostegia
Niebieski Oak Tree
In Latin
Physostegia
Blue quercum ligno
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Fagales
Family
Lamiaceae
Fagaceae
Genus
Physostegia
Quercus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
6520
1
27800
👆🏻