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
Types
Quercus stellata
Iris
Number of Varieties
2025
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Terrestrial
USDA Hardiness Zone
5-94-9
0
99
👆🏻
AHS Heat Zone
9-4
9-1
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
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
Oval or Rounded
Clump-Forming
Plant Size
Minimum Height
1,830.00 cm10.20 cm
0
3900
👆🏻
Minimum Width
1,680.00 cm15.20 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Light Yellow, Tan
Yellow, Lavender, Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Dark Green
Green, Sea Green
Leaf Color in Summer
Dark Green
Green, Sea Green
Leaf Color in Fall
Orange, Tan, Bronze, Orange Red
Green, Sea Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Elliptic and Ovate
Lanceolate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Slow
Medium
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Neutral
Soil Drainage
Average
Well drained
Bloom Time
Spring
Spring, Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Salt
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
By dividing rhizomes, tubers, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Needs less watering
Average Water Needs, Do Not over Water
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Neutral
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Average
Well drained
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
Coarse
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Hummingbirds
Allergy
-
Skin irritation
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Astringent, Emetic, Febrifuge, Tonic
-
Part of Plant Used
Leaves, Seeds, Wood
-
Other Uses
Used As Food, Used as Ornamental plant, Used in pulpwood and lumber production
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Alpine, Edging, Mixed Border, Rock Garden, Wall
Botanical Name
QUERCUS stellata
IRIS pumila
Common Name
Post Oak
Dwarf Iris
In Hindi
पोस्ट ओक
Dwarf Iris
In German
Post oak
Zwergiris
In French
Post oak
Dwarf Iris
In Spanish
Post oak
Enano Iris
In Greek
Post Oak
νάνος Ίρις
In Portuguese
Post Oak
Dwarf Iris
In Polish
post Oak
Dwarf Iris
In Latin
Post quercu
Iris Dwarf
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
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
👆🏻