Life Span
Perennial
Perennial
Type
Tree
Herbaceous Perennial
Origin
United States, California
Europe, Eastern Europe, Northern Europe, Southern Europe, Western Europe, Russia, Siberia, Mediterranean, Iraq, Iran, Western Asia
Types
-
-
Number of Varieties
84
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Temperate Regions, Wet lands
USDA Hardiness Zone
6-94-8
0
99
👆🏻
AHS Heat Zone
9-1
8-3
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
A2, A3, 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
Clump-Forming
Plant Size
Minimum Height
1,520.00 cm90.00 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm1,150.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Light Yellow, Chocolate
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Brown
Leaf Color in Spring
Green, Blue Green
Green, Gray Green
Leaf Color in Summer
Green, Blue Green
Gray Green, Dark Green
Leaf Color in Fall
Yellow, Orange, Pink
Gray Green, Dark Green, Yellow green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Irregular
Sword-like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer
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
-
Poorly Drained
Bloom Time
Spring
-
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
From Rhizomes, Seedlings, Water-dispersed Seed
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
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
Soil Type
-
Clay, Loam, Sand
Soil Drainage Capacity
-
Poorly 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 damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Bacteria, fungus, Viruses
Plant Tolerance
Drought
Drought
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
Medium
Foliage Sheen
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Butterflies, Hummingbirds
Allergy
Pollen
allergic reaction, Skin irritation
Uses
Aesthetic Uses
Borders
Beautification, 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
cathartic, Diarrhea
Part of Plant Used
Leaves, Seeds, Wood
Flowers, Rhizomes, Whole plant
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Used in herbal medicines
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Bog Garden, Container, Water Gardens
Botanical Name
QUERCUS douglasii
IRIS pseudacorus
Common Name
Blue Oak
Pale Yellow Iris, Yellow Flag, Yellow Iris
In Hindi
Blue Oak Tree
Pale Yellow Iris
In German
Blaue Eiche
Sumpf-Schwertlilie
In French
Bleu Oak Tree
Iris pseudacorus
In Spanish
Azul del árbol de roble
Iris pseudacorus
In Greek
Μπλε Oak Tree
Pale Yellow Iris
In Portuguese
Carvalho azul
Pale Yellow Iris
In Polish
Niebieski Oak Tree
Kosaciec żółty
In Latin
Blue quercum ligno
Pale Yellow Iris
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Fagales
Asparagales
Family
Fagaceae
Iridaceae
Genus
Quercus
Iris
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Tribe
-
Irideae
Subfamily
-
Iridoideae
Number of Species
20260
1
27800
👆🏻