Life Span
Biennial
Perennial
Type
Vegetable
Perennial
Origin
Southern Europe, Western Europe, Mediterranean
-
Types
Brassica oleracea var. sabauda
Iris hexagona, Iris fulva
Number of Varieties
7160
0
40000
👆🏻
Habitat
Cultivated Beds, Moist Soils
gardens, Wet ground
USDA Hardiness Zone
6-86-9
0
99
👆🏻
AHS Heat Zone
6-1
9-5
Sunset Zone
A1, A2, A3, H1, H2, 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
Rosette/Stemless
Clump-Forming
Plant Size
Minimum Height
25.40 cm81.30 cm
0
3900
👆🏻
Minimum Width
30.50 cm61.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Light Purple, Yellow
Yellow, Blue, Gold, Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Green
Leaf Color in Spring
Green, Dark Green
Green
Leaf Color in Summer
Light Green, Blue Green
Green
Leaf Color in Fall
Light Green, Blue Green
Green
Leaf Color in Winter
Light Green, Blue Green
Light Green
Shape
Leaf Shape
Ovate elongated
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Loam, Sand
Clay, Loam
The pH of Soil
Acidic
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Spring, Late Spring, Early Summer
Early Spring, Spring, Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Container, Ground, Pot
How to Plant?
Cuttings, Seedlings
Divison, From bulbs, From Rhizomes
Plant Maintenance
Medium
High
Watering Plants
Watering Requirements
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
Acidic
Acidic, Neutral
Soil Type
Loam, Sand
Clay, Loam
Soil Drainage Capacity
Well drained
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 leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Bacterial leaf spot, Bacterial soft rot, Beet armyworm, Cabbage looper, Cabbageworm, Flea Beetles, Fungal leaf spots
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
Bold
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bugs, Rabbits
-
Allergy
Nausea
-
Uses
Aesthetic Uses
-
Bouquets, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
-
Plant Benefits
Medicinal Uses
Nutrients
-
Part of Plant Used
Whole plant
Flowers, Leaves
Other Uses
Used in chopped mixed salad, Used in curries, soups, stews
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Container, Edible, Herb / Vegetable
Bog Garden, Container, Cutflower, Mixed Border, Water Gardens
Botanical Name
Brassica oleracea
IRIS 'Blue Duke'
Common Name
Alcosa Cabbaga, Savoy Cabbage
Louisiana Iris
In Hindi
Savoy Cabbage
Louisiana Iris
In German
Wirsing
Louisiana-Iris
In French
Savoy Cabbage
iris louisiane
In Spanish
col de col rizada
iris luisiana
In Greek
Savoy Cabbage
Λουιζιάνα ίριδας
In Portuguese
Savoy Cabbage
louisiana iris
In Polish
Kapusta włoska
louisiana tęczówki
In Latin
Brassica Sabaudiae
louisiana iris
Kingdom
Plantae
Plantae
Phylum
Embryophyta
Magnoliophyta
Class
Eudicotyledones
Liliopsida
Order
Brassicales
Asparagales
Family
Brassicaceae
Iridaceae
Genus
Brassica
Iris
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Tribe
-
Irideae
Subfamily
-
Iridoideae
Number of Species
180
1
27800
👆🏻