Life Span
Perennial
Annual
Type
Perennial
Sedge or Rush
Origin
-
Southern Europe, United Kingdom, Northern Africa
Types
-
-
Number of Varieties
5020
0
40000
👆🏻
Habitat
Cold Regions, Temperate Regions
Grassland, Humid climates, Riverbanks, Wet forest
USDA Hardiness Zone
4-88-11
0
99
👆🏻
AHS Heat Zone
8-1
11-1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17
7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Cushion/Mound-forming
Arching/Fountain-shaped
Plant Size
Minimum Height
20.30 cm15.20 cm
0
3900
👆🏻
Minimum Width
27.90 cm45.70 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Lavender
White
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
Green
Shape
Leaf Shape
Linear
Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Slow
Type of Soil
Clay, Loam, Sand
Loam
The pH of Soil
Acidic, Neutral, Alkaline
Neutral
Soil Drainage
Average
Poorly Drained
Bloom Time
Early Spring, Spring, Late Spring, Early Summer
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Container, Ground, Pot
How to Plant?
Seedlings
Seedlings, Stem Planting
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, Water when soil is dry
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Neutral
Soil Type
Clay, Loam, Sand
Loam
Soil Drainage Capacity
Average
Poorly Drained
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 branches, 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
Showy
Showy
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
Fine
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
Insects
Allergy
-
Asthma, Skin irritation
Uses
Aesthetic Uses
Beautification, Showy Purposes
Beautification
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Black Dyes
Digestion problems, Fever
Part of Plant Used
-
Whole plant
Other Uses
-
Showy Purposes, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Mixed Border, Rock Garden / Wall, Wildflower
Bog Garden, Container, Edging, Rock Garden / Wall
Botanical Name
Polemonium caeruleum
ISOLEPIS cernua
Common Name
Jacob's Ladder
Low Bulrush
Slender Clubrush
In Hindi
Jacob's Ladder
फाइबर ऑप्टिक घास
In German
Jacob's Ladder
Lichtwellenleiter-Gras
In French
Jacob's Ladder
Fibre optique Herbe
In Spanish
Jacob's Ladder
Hierba de fibra óptica
In Greek
Jacob's Ladder
Οπτικών Ινών Grass
In Portuguese
Jacob's Ladder
Fibra Óptica Relva
In Polish
Jacob's Ladder
Światłowody Trawa
In Latin
Jacob's Ladder
Fiber opticus Grass
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
-
Class
Magnoliopsida
-
Order
Ericales
Poales
Family
Polemoniaceae
Cyperaceae
Genus
Polemonium
Isolepis
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Commelinids, Monocots
Tribe
-
-
Subfamily
-
Pooideae
Number of Species
4070
1
27800
👆🏻