Life Span
Perennial
Perennial
Type
Perennial
Perennial
Origin
-
Eastern Asia, India, Nepal, China
Types
-
Victoria Rhubarb
Colorado Red Rhubarb
Turkish Rhubarb
Number of Varieties
50100
0
40000
👆🏻
Habitat
Cold Regions, Temperate Regions
gardens, Grassland, Humid climates, Tropical regions, Urban areas
USDA Hardiness Zone
4-83-7
0
99
👆🏻
AHS Heat Zone
8-1
8-5
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17
2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Cushion/Mound-forming
Clump-Forming
Plant Size
Minimum Height
20.30 cm60.00 cm
0
3900
👆🏻
Minimum Width
27.90 cm120.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Lavender
Ivory
Flower Color Modifier
-
-
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
Compound
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Summer
Growing Conditions
Sunlight
Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Fast
Type of Soil
Clay, Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Early Spring, Spring, Late Spring, Early Summer
Summer, Late Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Seedlings
Stem Planting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Keep ground moist, Water more in summer
Do Not over Water, Requires regular watering, Use Mulches to help prevent water loss during hot and windy weather, Water Deeply
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
Soil Type
Clay, Loam, Sand
Clay, Loam
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Partial Sun, Partial shade
Full Sun, Partial Sun
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
-
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Fine
Bold
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
-
Allergy
-
Skin irritation
Uses
Aesthetic Uses
Beautification, Showy Purposes
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Black Dyes
-
Part of Plant Used
-
Whole plant
Other Uses
-
Culinary use, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Mixed Border, Rock Garden / Wall, Wildflower
Edible, Herb / Vegetable, Mixed Border
Botanical Name
Polemonium caeruleum
RHEUM x hybridum
Common Name
Jacob's Ladder
Hybrid Garden Rhubarb, Rhubarb
In Hindi
Jacob's Ladder
एक प्रकार का फल
In German
Jacob's Ladder
Rhabarber
In French
Jacob's Ladder
Rhubarbe
In Spanish
Jacob's Ladder
Ruibarbo
In Greek
Jacob's Ladder
Ραβέντι
In Portuguese
Jacob's Ladder
Ruibarbo
In Polish
Jacob's Ladder
Rabarbar
In Latin
Jacob's Ladder
RHEUM
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Tracheophyta
Class
Magnoliopsida
-
Order
Ericales
Caryophyllales
Family
Polemoniaceae
Polygonaceae
Genus
Polemonium
Rheum
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Core eudicots, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
4060
1
27800
👆🏻