Life Span
Perennial
Perennial
Type
Perennial
Perennial
Origin
California
Eastern Europe, Russia, Siberia
Types
-
-
Number of Varieties
110
0
40000
👆🏻
Habitat
Chaparral, River side
Grassland, Pastures, Swamps
USDA Hardiness Zone
7-103-8
0
99
👆🏻
AHS Heat Zone
9-1
9-1
Sunset Zone
H1, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
A2, A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
Habit
Upright/Erect
Clump-Forming
Plant Size
Minimum Height
120.00 cm90.00 cm
0
3900
👆🏻
Minimum Width
120.00 cm60.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Yellow
Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Tan
-
Leaf Color in Spring
Gray Green
Green
Leaf Color in Summer
Gray Green
Green
Leaf Color in Fall
Gray Green
Green
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Lance shaped
Long Narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Summer
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Fast
Fast
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Early Spring, Spring, Late Spring, Early Summer, Summer
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Cuttings, Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Needs watering once a week, Water well when planted
Keep the ground moist but not water-logged, Requires regular watering, Requires watering in the growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
Pruning
prune nearly to the ground in late fall
Remove damaged leaves, Remove dead leaves
Fertilizers
organic fertlizers
All-Purpose Liquid Fertilizer
Pests and Diseases
Verticillium Wilt
Red blotch
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
Foliage Sheen
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bees, Birds, Butterflies
Butterflies
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
antimicrobial, Astringent, Gum Problems, Stomach pain
-
Part of Plant Used
Flower Stalk
Flowers, Leaves
Other Uses
Used as Ornamental plant
Decoration Purposes, Showy Purposes, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Groundcover, Mixed Border, Wildflower
Cutflower, Feature Plant, Foundation, Mixed Border
Botanical Name
ROMNEYA coulteri
IRIS sibirica 'Caesar's Brother'
Common Name
Matilija Poppy
Siberian Iris
In Hindi
Matilija Poppy
Caesar's Brother Siberian Iris
In German
Matilija Poppy
Caesars Bruder Sibirische Iris
In French
Matilija Poppy
Frère Iris de Sibérie de César
In Spanish
Matilija amapola
De César Hermano Siberian Iris
In Greek
Matilija παπαρούνας
Καίσαρα Αδελφός Σιβηρίας Iris
In Portuguese
Matilija Poppy
Irmão de César Siberian Iris
In Polish
Matilija Poppy
Cezara Brat syberyjski Iris
In Latin
Matilija Poppy
Caesaris Frater Siberian Iris
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
-
Class
Magnoliopsida
Liliopsida
Order
Papaverales
Asparagales
Family
Papaveraceae
Iridaceae
Genus
Romneya
Abelia
Clade
Angiosperms, Eudicots
Angiosperms, Monocots
Tribe
-
-
Subfamily
Papaveroideae
Iridoideae
Number of Species
235
1
27800
👆🏻