Life Span
Biennial
Perennial
Type
Tree
Perennial
Origin
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
-
Types
Yellow Birch, Paper Birch, River Birch
Iris hexagona, Iris fulva
Number of Varieties
40160
0
40000
👆🏻
Habitat
Hills, Moist Soils
gardens, Wet ground
USDA Hardiness Zone
4-96-9
0
99
👆🏻
AHS Heat Zone
9-1
9-5
Sunset Zone
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
H1, H2, 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
2,133.60 cm81.30 cm
0
3900
👆🏻
Minimum Width
762.00 cm61.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Brown
Yellow, Blue, Gold, Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Black
Green
Leaf Color in Spring
Green, Light Green
Green
Leaf Color in Summer
Green, Light Green
Green
Leaf Color in Fall
Yellow, Light Yellow, Tan
Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Pinnate
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam
Clay, Loam
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Average
Average
Bloom Time
Spring
Early Spring, Spring, Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site, Pollution, Soil Compaction
Drought
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings
Divison, From bulbs, From Rhizomes
Plant Maintenance
Medium
High
Watering Plants
Watering Requirements
Requires watering in the growing season, Water daily during growing season, Water Deeply, Water more frequently during periods of extreme drought
Do not let dry out between waterings, Requires a lot of watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Ample Water
In Winter
Average Water
Regular watering required
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Clay, Loam
Clay, Loam
Soil Drainage Capacity
Average
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove hanging branches
Remove damaged leaves, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, fertilize twice a year, Nitrogen
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Caterpillars, Rust
Plant Tolerance
Pollution, Soil Compaction, Wet Site
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
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Aphids, Birds
-
Allergy
-
-
Uses
Aesthetic Uses
-
Bouquets, Showy Purposes
Beauty Benefits
Good for skin
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Nesting sites for birds, Shadow Tree, Shelter for wildlife, Wildlife
-
Plant Benefits
Medicinal Uses
Antibacterial, anti-inflammatory, Arthritis, Boils, bowel syndrome, Combats Stress, Diarrhea, Dysentry, Heart problems, Kidney Stones, Osteoarthritis, Skin Disorders, Urinary tract problems
-
Part of Plant Used
Bark, Leaves, Sap
Flowers, Leaves
Other Uses
Medicinal oil, Used as essential oil
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Bog Garden, Container, Cutflower, Mixed Border, Water Gardens
Botanical Name
BETULA nigra 'Studetec'
IRIS 'Blue Duke'
Common Name
Black Birch, River Birch, Tecumseh Compact River Birch
Louisiana Iris
In Hindi
काले बर्च वृक्ष
Louisiana Iris
In German
Schwarze Birke
Louisiana-Iris
In French
Noir Bouleau
iris louisiane
In Spanish
Negro del árbol de abedul
iris luisiana
In Greek
Μαύρο Birch Tree
Λουιζιάνα ίριδας
In Portuguese
Bétula Preto
louisiana iris
In Polish
Czarny Brzoza
louisiana tęczówki
In Latin
Niger Caerulus
louisiana iris
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Fagales
Asparagales
Family
Betulaceae
Iridaceae
Genus
Betula
Iris
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Tribe
-
Irideae
Subfamily
-
Iridoideae
Number of Species
4080
1
27800
👆🏻