Life Span
Perennial
Perennial
Type
Tree
Bulb or Corm or Tuber
Origin
United States, California
North America, Europe, Africa, Asia
Types
-
-
Number of Varieties
81
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Alpine Meadows, meadows, Mountains, stream banks
USDA Hardiness Zone
6-94-8
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
21,22
Habit
Spreading
Upright/Erect
Plant Size
Minimum Height
1,520.00 cm91.40 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm25.40 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Crimson, Pink, Red, Yellow
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green, Blue Green
Green
Leaf Color in Summer
Green, Blue Green
Light Green
Leaf Color in Fall
Yellow, Orange, Pink
Several shades of Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Irregular
Oval
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
-
Clay, Loam, Sand
The pH of Soil
-
Acidic, Neutral, Alkaline
Soil Drainage
-
Well drained
Bloom Time
Spring
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Salt and Soil Compaction, Shade areas, Shallow soil
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Cuttings, From bulbs
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Keep the Soil well drained, occasional watering once established
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, Sand
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
Cut off the flower stalks at the base of the plant, Prune after flowering, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer, Compost, Organic Flower Fertilizer
Pests and Diseases
Red blotch
Aphids, Bacteria wilt, Pink Root, Red blotch, Root rot
Plant Tolerance
Drought
Shallow soil, Soil Compaction
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
Coarse
Foliage Sheen
-
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Butterflies, Hummingbirds
Allergy
Pollen
Red eyes, Vomiting, wheezing
Uses
Aesthetic Uses
Borders
Beautification, Cottage Garden
Beauty Benefits
-
Good Cleanser, Good for the Scalp
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Air purification, Provides ground cover
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
Antibacterial, Antifungal, Anti-oxidant, Eczema, hemorrhoids
Part of Plant Used
Leaves, Seeds, Wood
Leaf Stalks, Stem
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Decoration Purposes, Showy Purposes
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Container, Cutflower, Mixed Border
Botanical Name
QUERCUS douglasii
Spigelia marilandica
Common Name
Blue Oak
Woodland pinkroot, Indian pink
In Hindi
Blue Oak Tree
pinkroot
In German
Blaue Eiche
Spigelia
In French
Bleu Oak Tree
Spigelia
In Spanish
Azul del árbol de roble
Spigelia
In Greek
Μπλε Oak Tree
Spigelia
In Portuguese
Carvalho azul
Spigelia
In Polish
Niebieski Oak Tree
Spigelia
In Latin
Blue quercum ligno
Spigelia
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Gentianales
Family
Fagaceae
Loganiceae
Genus
Quercus
Spigelia
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
2060
1
27800
👆🏻