Life Span
Perennial
Annual and Perennial
Type
Perennial
Flowering Plants, Shrubs
Origin
-
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Types
-
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Number of Varieties
50100
0
40000
👆🏻
Habitat
Cold Regions, Temperate Regions
Forest edges, Hillside, Woods
USDA Hardiness Zone
4-82-11
0
99
👆🏻
AHS Heat Zone
8-1
7 - 1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Cushion/Mound-forming
Upright/Erect
Plant Size
Minimum Height
20.30 cm30.00 cm
0
3900
👆🏻
Minimum Width
27.90 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Lavender
Blue, Sky Blue, Indigo, Dark Blue
Flower Color Modifier
-
Bicolor
Fruit Color
-
Brown, Sandy Brown
Leaf Color in Spring
Green, Purple
Sea Green, Gray Green
Leaf Color in Summer
Green, Purple
Sea Green, Gray Green
Leaf Color in Fall
Green, Purple
Sea Green, Gray Green
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Linear
Oblovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Growing Conditions
Sunlight
Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Very Fast
Type of Soil
Clay, Loam, Sand
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
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Container, Ground, Pot
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Keep ground moist, Water more in summer
Keep ground moist, Requires a lot of watering, 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
Slightly Acidic
Soil Type
Clay, Loam, Sand
Loamy
Soil Drainage Capacity
Average
Loamy
Sun Exposure
Partial Sun, Partial shade
Full Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Prune to control growth, 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
Compost
Pests and Diseases
Red blotch
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
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
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
Butterflies
Allergy
-
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Uses
Aesthetic Uses
Beautification, Showy Purposes
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Plant Benefits
Medicinal Uses
Black Dyes
Fever, Kidney problems, Urinary tract problems
Part of Plant Used
-
Flowers, Root
Other Uses
-
Can be made into a herbal tea, Decoration Purposes, Employed in herbal medicine, Showy Purposes, Used as Ornamental plant, Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Mixed Border, Rock Garden / Wall, Wildflower
Container, Herb
Botanical Name
Polemonium caeruleum
CENTAUREA cyanus
Common Name
Jacob's Ladder
Batchelor's Buttons, Cornflower
In Hindi
Jacob's Ladder
Hydrangea
In German
Jacob's Ladder
Hortensie
In French
Jacob's Ladder
Hortensia
In Spanish
Jacob's Ladder
Hortensia
In Greek
Jacob's Ladder
υδραγεία
In Portuguese
Jacob's Ladder
Hortênsia
In Polish
Jacob's Ladder
Hortensja
In Latin
Jacob's Ladder
Hibiscus
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Order
Ericales
Asterales
Family
Polemoniaceae
Asteraceae
Genus
Polemonium
Centaurea
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Cynareae
Subfamily
-
Carduoideae
Number of Species
40250
1
27800
👆🏻