Life Span
Annual and Perennial
Perennial
Type
Tree
Perennial
Origin
United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Texas
Eastern Europe, Russia, Siberia
Types
Quercus stellata
Iris sibirica
Number of Varieties
2090
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Damp shady woods, Pastures
USDA Hardiness Zone
5-93-8
0
99
👆🏻
AHS Heat Zone
9-4
7-1
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
Habit
Oval or Rounded
Clump-Forming
Plant Size
Minimum Height
1,830.00 cm50.80 cm
0
3900
👆🏻
Minimum Width
1,680.00 cm61.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Light Yellow, Tan
White, Purple, Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Dark Green
Green, Dark Green
Leaf Color in Summer
Dark Green
Green, Dark Green
Leaf Color in Fall
Orange, Tan, Bronze, Orange Red
Green, Dark Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Elliptic and Ovate
Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Slow
Fast
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Average
Average
Bloom Time
Spring
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Salt
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Bulbs, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Needs less watering
Keep ground moist
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Average
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Red blotch
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
Coarse
Medium
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
pollinators
Allergy
-
allergic reaction, Skin irritation
Uses
Aesthetic Uses
Showy Purposes
Bog Garden, Showy Purposes, Woodland margins
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Astringent, Emetic, Febrifuge, Tonic
Expectorant
Part of Plant Used
Leaves, Seeds, Wood
Flowers, Root
Other Uses
Used As Food, Used as Ornamental plant, Used in pulpwood and lumber production
Used as an insecticide
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Bog Garden, Cutflower, Feature Plant, Foundation, Mixed Border
Botanical Name
QUERCUS stellata
IRIS sibirica
Common Name
Post Oak
Siberian Iris
In Hindi
पोस्ट ओक
Siberian Iris
In German
Post oak
Sibirische Schwertlilie
In French
Post oak
L'Iris de Sibérie
In Spanish
Post oak
Siberian Iris
In Greek
Post Oak
Siberian Iris
In Portuguese
Post Oak
Siberian Iris
In Polish
post Oak
Kosaciec syberyjski
In Latin
Post quercu
Siberian Iris
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheobionta
Class
Magnoliopsida
Liliopsida
Order
Fagales
Liliales
Family
Fagaceae
Iridaceae
Genus
Quercus
Iris
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Tribe
-
Irideae
Subfamily
-
Iridoideae
Number of Species
90300
1
27800
👆🏻