Life Span
Perennial
Perennial
Type
Flowering Plants
Perennial
Origin
Southwestern United States, California
-
Types
-
Iris hexagona, Iris fulva
Number of Varieties
40160
0
40000
👆🏻
Habitat
Dry areas, meadows
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, 7, 8, 9, 10, 11, 12, 13, 18, 19, 20, 21
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
61.00 cm81.30 cm
0
3900
👆🏻
Minimum Width
25.40 cm61.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Crimson
Yellow, Blue, Gold, Blue Violet
Flower Color Modifier
Bicolor
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
-
Light Green
Shape
Leaf Shape
Oblong
Long linear and narrow
Thorns
✔
✘
✔
✘
Plant Season
Summer
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
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Early Summer, Summer, Late Summer
Early Spring, Spring, Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings, Stem Planting
Divison, From bulbs, From Rhizomes
Plant Maintenance
Medium
High
Watering Plants
Watering Requirements
Do Not over Water, Requires watering in the growing season, Water Deeply, Water when soil is dry
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, Alkaline
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
No pruning needed in the early stages, Prune to stimulate growth, Remove damaged leaves, Remove dead leaves, Remove deadheads
Remove damaged leaves, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Apply 10-10-10 amount
All-Purpose Liquid Fertilizer
Pests and Diseases
Insects
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
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds
-
Allergy
Asthma
-
Uses
Aesthetic Uses
Showy Purposes
Bouquets, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
-
Plant Benefits
Medicinal Uses
Burns, Snakebite, Stomach aliments
-
Part of Plant Used
Whole plant
Flowers, Leaves
Other Uses
Used as Ornamental plant
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Mixed Border, Rock Garden / Wall, Wildflower
Bog Garden, Container, Cutflower, Mixed Border, Water Gardens
Botanical Name
PENSTEMON eatonii
IRIS 'Blue Duke'
Common Name
Firecracker Penstemon
Louisiana Iris
In Hindi
Firecracker penstemon
Louisiana Iris
In German
Kracher penstemon
Louisiana-Iris
In French
Firecracker penstemon
iris louisiane
In Spanish
Penstemon del petardo
iris luisiana
In Greek
πυροτέχνημα penstemon
Λουιζιάνα ίριδας
In Portuguese
Penstemon do foguete
louisiana iris
In Polish
petarda penstemon
louisiana tęczówki
In Latin
Firecracker Persicaria
louisiana iris
Kingdom
Plantae
Plantae
Phylum
-
Magnoliophyta
Class
-
Liliopsida
Order
Lamiales
Asparagales
Family
Scrophulariaceae
Iridaceae
Genus
Penstemon
Iris
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Monocots
Tribe
-
Irideae
Subfamily
-
Iridoideae
Number of Species
25080
1
27800
👆🏻