Life Span
Perennial
Perennial
Type
Epiphyte
Perennial
Origin
Southeastern United States, Latin America and the Caribbean, Caribbean, Central America, South America
-
Types
-
Iris hexagona, Iris fulva
Number of Varieties
3160
0
40000
👆🏻
Habitat
Swamps
gardens, Wet ground
USDA Hardiness Zone
10-136-9
0
99
👆🏻
AHS Heat Zone
12-9
9-5
Sunset Zone
H1, H2, 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
Clump-Forming
Clump-Forming
Plant Size
Minimum Height
30.50 cm81.30 cm
0
3900
👆🏻
Minimum Width
25.60 cm61.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Burgundy, Dark Red, Light Green, Violet, Dark Salmon
Yellow, Blue, Gold, Blue Violet
Flower Color Modifier
Multi-Color
Bicolor
Fruit Color
-
Green
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Green
Green
Leaf Color in Fall
Green
Green
Leaf Color in Winter
Green
Light Green
Shape
Leaf Shape
Long Linear
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring
Growing Conditions
Sunlight
Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Slow
Medium
Type of Soil
-
Clay, Loam
The pH of Soil
Neutral, Slightly Acidic
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer, Late Summer, Early Fall, Fall, Late Fall
Early Spring, Spring, Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Container, Ground, Pot
Container, Ground, Pot
How to Plant?
Bulbs, By dividing rhizomes, tubers, Divison
Divison, From bulbs, From Rhizomes
Plant Maintenance
Medium
High
Watering Plants
Watering Requirements
Average Water Needs, Do Not over Water, Requires regular watering
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
Neutral, Slightly Acidic
Acidic, Neutral
Soil Type
-
Clay, Loam
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Partial Sun, Partial shade
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Caterpillars, Rust
Plant Tolerance
Drought
Drought
Flowers
✔
✘
✔
✘
Flower Petal Number
Single
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
Bees, pollinators
-
Allergy
-
-
Uses
Aesthetic Uses
Bouquets, Showy Purposes
Bouquets, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
-
Plant Benefits
Medicinal Uses
Cancer, Eye Problems
-
Part of Plant Used
Bulbs, Flowers, Leaves
Flowers, Leaves
Other Uses
Used as Ornamental plant
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Houseplant, Mixed Border
Bog Garden, Container, Cutflower, Mixed Border, Water Gardens
Botanical Name
PROSTHECHEA cochleata
IRIS 'Blue Duke'
Common Name
Clamshell Orchid, Cockleshell Orchid, Black Orchid
Louisiana Iris
In Hindi
Clamshell Orchid
Louisiana Iris
In German
Clamshell Orchid
Louisiana-Iris
In French
Clamshell Orchid
iris louisiane
In Spanish
Clamshell Orchid
iris luisiana
In Greek
Encyclia Cochleata
Λουιζιάνα ίριδας
In Portuguese
Clamshell Orchid
louisiana iris
In Polish
Clamshell Orchid
louisiana tęczówki
In Latin
Clamshell Orchid
louisiana iris
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Liliopsida
Liliopsida
Order
Orchidales
Asparagales
Family
Orchidaceae
Iridaceae
Genus
Prosthechea
Iris
Clade
Angiosperms, Monocots
Angiosperms, Monocots
Tribe
Epidendreae
Irideae
Subfamily
Epidendroideae
Iridoideae
Number of Species
5080
1
27800
👆🏻