Life Span
Perennial
Perennial
Type
Perennial
Grass
Origin
-
Europe, Western Asia
Types
-
Blue Dune Lyme Grass
Number of Varieties
507
0
40000
👆🏻
Habitat
Cold Regions, Temperate Regions
Clay soil areas, Loamy soils, Sandy areas, sandy seeps, Well Drained
USDA Hardiness Zone
4-87-9
0
99
👆🏻
AHS Heat Zone
8-1
9 - 7
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17
H1, H2, 7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Cushion/Mound-forming
Spreading
Plant Size
Minimum Height
20.30 cm150.00 cm
0
3900
👆🏻
Minimum Width
27.90 cm75.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Lavender
Creamy Yellow
Flower Color Modifier
-
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green, Purple
Blue Green, Gray Green
Leaf Color in Summer
Green, Purple
Light Green
Leaf Color in Fall
Green, Purple
Blue Green, Gray Green
Leaf Color in Winter
Light Green
Tan
Shape
Leaf Shape
Linear
Grass like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Summer, Fall, Winter
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
Well drained
Bloom Time
Early Spring, Spring, Late Spring, Early Summer
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Wet Site, Pollution, Drought, Soil Compaction
Where to Plant?
Container, Ground
Container, Ground, Pot
How to Plant?
Seedlings
Root Division, Rooted stem cutting, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Keep ground moist, Water more in summer
Average Water Needs, occasional watering once established
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
Well drained
Sun Exposure
Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
No pruning needed in the early stages, Prune grass to maintain level
Fertilizers
All-Purpose Liquid Fertilizer, as it is a flowering plant, use high phosphorous content fertilizer
All-Purpose Liquid Fertilizer, fertilize in spring
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
Drought
Drought, Pollution, Soil Compaction, Wet Site
Flowers
Showy
Insignificant
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
Coarse
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
Butterflies
Allergy
-
Pollen
Uses
Aesthetic Uses
Beautification, Showy Purposes
Ground Cover, Landscape Designing
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, soil erosion prevension on hill slopes, soil stabilisation
Plant Benefits
Medicinal Uses
Black Dyes
-
Part of Plant Used
-
Stem
Other Uses
-
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Mixed Border, Rock Garden / Wall, Wildflower
Dried Flower/Everlasting, Groundcover
Botanical Name
Polemonium caeruleum
ELYMUS glaucus
Common Name
Jacob's Ladder
Blue Lyme Grass, Blue Wildrye
In Hindi
Jacob's Ladder
Blue Lyme Grass
In German
Jacob's Ladder
Blau Lyme Grass
In French
Jacob's Ladder
Bleu Lyme Herbe
In Spanish
Jacob's Ladder
Azul hierba de Lyme
In Greek
Jacob's Ladder
Μπλε Lyme Grass
In Portuguese
Jacob's Ladder
Azul Lyme grama
In Polish
Jacob's Ladder
Niebieska Trawa Lyme
In Latin
Jacob's Ladder
Blue Lyme Grass
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Ericales
Cyperales
Family
Polemoniaceae
Poaceae
Genus
Polemonium
Elymus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Commelinids, Monocots
Tribe
-
Triticeae
Subfamily
-
Pooideae
Number of Species
402
1
27800
👆🏻