Life Span
Perennial
Perennial
Type
Tree
Perennial
Origin
Northeastern United States, Mid-Atlantic United States, Central United States, Canada
-
Types
Blue ash, Single-leaf ash, Fragrant ash
Iris hexagona, Iris fulva
Number of Varieties
45160
0
40000
👆🏻
Habitat
Moist Soils
gardens, Wet ground
USDA Hardiness Zone
3-76-9
0
99
👆🏻
AHS Heat Zone
7-1
9-5
Sunset Zone
-
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
Upright/Erect
Clump-Forming
Plant Size
Minimum Height
1,220.00 cm81.30 cm
0
3900
👆🏻
Minimum Width
610.00 cm61.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Green, Purple
Yellow, Blue, Gold, Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Tan
Green
Leaf Color in Spring
Green, Dark Green
Green
Leaf Color in Summer
Dark Green
Green
Leaf Color in Fall
Yellow, Yellow green, Brown, Bronze
Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Pinnate
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Average
Average
Bloom Time
Early Spring, Spring
Early Spring, Spring, Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site
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
Average Water Needs
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, Sand
Clay, Loam
Soil Drainage Capacity
Average
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Prune in fall, Prune in winter, Prune when plant is dormant, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove short twigs
Remove damaged leaves, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Caterpillars, Rust
Plant Tolerance
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
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
-
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Bouquets, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Nesting sites for birds, Wildlife, Windbreak
-
Plant Benefits
Medicinal Uses
Antirheumatic, Diaphoretic, Diuretic, Fever, Gout, Laxative, Ophthalmic, Purgative, Sore Eyes, Sore throat, Tonic
-
Part of Plant Used
Inner Bark, Leaves, Tree trunks
Flowers, Leaves
Other Uses
Basketary, Used as a dye, Used as fuel, Used for woodware
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Shade Trees, Water Gardens
Bog Garden, Container, Cutflower, Mixed Border, Water Gardens
Botanical Name
FRAXINUS nigra
IRIS 'Blue Duke'
Common Name
Black Ash, Brown Ash, Swamp Ash
Louisiana Iris
In Hindi
Black Ash plant
Louisiana Iris
In German
Black Ash Pflanze
Louisiana-Iris
In French
plante Black Ash
iris louisiane
In Spanish
planta de negro de Ceniza
iris luisiana
In Greek
φυτό μαύρη τέφρα
Λουιζιάνα ίριδας
In Portuguese
planta Black Ash
louisiana iris
In Polish
Black Ash roślin
louisiana tęczówki
In Latin
Black ash herba
louisiana iris
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Scrophulariales
Asparagales
Family
Oleaceae
Iridaceae
Genus
Fraxinus
Iris
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Monocots
Tribe
Oleeae
Irideae
Subfamily
-
Iridoideae
Number of Species
1880
1
27800
👆🏻