Life Span
Perennial
Perennial
Type
Perennial
Perennial
Origin
-
Eastern Europe, Russia, Siberia
Types
-
-
Number of Varieties
5010
0
40000
👆🏻
Habitat
Cold Regions, Temperate Regions
Grassland, Pastures, Swamps
USDA Hardiness Zone
4-83-8
0
99
👆🏻
AHS Heat Zone
8-1
9-1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17
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
Cushion/Mound-forming
Clump-Forming
Plant Size
Minimum Height
20.30 cm90.00 cm
0
3900
👆🏻
Minimum Width
27.90 cm60.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Lavender
Blue Violet
Flower Color Modifier
-
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green, Purple
Green
Leaf Color in Summer
Green, Purple
Green
Leaf Color in Fall
Green, Purple
Green
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Linear
Long Narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Summer
Growing Conditions
Sunlight
Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Fast
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Average
Average
Bloom Time
Early Spring, Spring, Late Spring, Early Summer
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Keep ground moist, Water more in summer
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
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Average
Average
Sun Exposure
Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, as it is a flowering plant, use high phosphorous content fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
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
Fine
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
Butterflies
Allergy
-
-
Uses
Aesthetic Uses
Beautification, Showy Purposes
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Black Dyes
-
Part of Plant Used
-
Flowers, Leaves
Other Uses
-
Decoration Purposes, Showy Purposes, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Mixed Border, Rock Garden / Wall, Wildflower
Cutflower, Feature Plant, Foundation, Mixed Border
Botanical Name
Polemonium caeruleum
IRIS sibirica 'Caesar's Brother'
Common Name
Jacob's Ladder
Siberian Iris
In Hindi
Jacob's Ladder
Caesar's Brother Siberian Iris
In German
Jacob's Ladder
Caesars Bruder Sibirische Iris
In French
Jacob's Ladder
Frère Iris de Sibérie de César
In Spanish
Jacob's Ladder
De César Hermano Siberian Iris
In Greek
Jacob's Ladder
Καίσαρα Αδελφός Σιβηρίας Iris
In Portuguese
Jacob's Ladder
Irmão de César Siberian Iris
In Polish
Jacob's Ladder
Cezara Brat syberyjski Iris
In Latin
Jacob's Ladder
Caesaris Frater Siberian Iris
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
-
Class
Magnoliopsida
Liliopsida
Order
Ericales
Asparagales
Family
Polemoniaceae
Iridaceae
Genus
Polemonium
Abelia
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Monocots
Tribe
-
-
Subfamily
-
Iridoideae
Number of Species
4035
1
27800
👆🏻