Life Span
Perennial
  
Perennial
  
Type
Perennial
  
Tree
  
Origin
Hybrid origin
  
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, Texas, Canada
  
Types
Not Available
  
Not Available
  
Habitat
Cold Regions, Temperate Regions
  
Wet lands
  
USDA Hardiness Zone
4-8
  
4-9
  
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
  
Not Available
  
Habit
Cushion/Mound-forming
  
Upright/Erect
  
Plant Size
  
  
Plant Color
  
  
Flower Color
Blue, Lavender
  
Yellow green
  
Flower Color Modifier
Not Available
  
Bicolor
  
Fruit Color
Non Fruiting Plant
  
Light Yellow, Ivory
  
Leaf Color in Spring
Green, Purple
  
Green, Orange, Dark Green
  
Leaf Color in Summer
Green, Purple
  
Green, Dark Green
  
Leaf Color in Fall
Green, Purple
  
Red, Orange, Orange Red
  
Leaf Color in Winter
Light Green
  
Not Available
  
Shape
  
  
Leaf Shape
Linear
  
Pinnate
  
Thorns
No
  
No
  
Plant Season
Spring, Summer, Fall
  
Summer, Fall
  
Growing Conditions
  
  
Sunlight
Partial Sun, Partial shade
  
Partial Sun, Partial shade
  
Growth Rate
Medium
  
Medium
  
Type of Soil
Clay, Loam, Sand
  
Clay, Loam, Sand
  
The pH of Soil
Acidic, Neutral, Alkaline
  
Acidic, Neutral
  
Soil Drainage
Average
  
Average
  
Bloom Time
Early Spring, Spring, Late Spring, Early Summer
  
Early Summer, Summer
  
Repeat Bloomer
No
  
No
  
Tolerances
Drought
  
Wet Site
  
Where to Plant?
Container, Ground
  
Ground
  
How to Plant?
Seedlings
  
From Rhizomes, Seedlings
  
Plant Maintenance
Medium
  
Medium
  
Watering Plants
  
  
Watering Requirements
Average Water Needs, Keep ground moist, Water more in summer
  
Requires standing water
  
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, Sand
  
Soil Drainage Capacity
Average
  
Average
  
Sun Exposure
Partial Sun, Partial shade
  
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
  
Not Available
  
Plant Tolerance
Drought
  
Drought
  
Flowers
Showy
  
Insignificant
  
Flower Petal Number
Single
  
Single
  
Fruits
  
  
Showy Fruit
No
  
Yes
  
Edible Fruit
No
  
No
  
Fragrance
  
  
Fragrant Flower
No
  
No
  
Fragrant Fruit
No
  
No
  
Fragrant Leaf
No
  
No
  
Fragrant Bark/Stem
No
  
No
  
Showy Foliage
No
  
Yes
  
Showy Bark
No
  
No
  
Foliage Texture
Fine
  
Medium
  
Foliage Sheen
Matte
  
Glossy
  
Evergreen
No
  
No
  
Invasive
No
  
No
  
Self-Sowing
No
  
Yes
  
Attracts
Butterflies
  
Birds
  
Allergy
Not Available
  
Irritate the mucus membrane, Rash, Skin irritation
  
Uses
  
  
Aesthetic Uses
Beautification, Showy Purposes
  
Not Used For Aesthetic Purpose
  
Beauty Benefits
Not Available
  
Not Available
  
Edible Uses
No
  
No
  
Environmental Uses
Air purification
  
Air purification
  
Plant Benefits
  
  
Medicinal Uses
Black Dyes, Not Available
  
No Medicinal Use
  
Part of Plant Used
Not Available
  
Sap
  
Other Uses
Not Available
  
Used to make a black varnish for use in woodworking
  
Used As Indoor Plant
Yes
  
No
  
Used As Outdoor Plant
Yes
  
Yes
  
Garden Design
Feature Plant, Mixed Border, Rock Garden / Wall, Wildflower
  
Not Available
  
Botanical Name
Polemonium caeruleum
  
TOXICODENDRON vernix
  
Common Name
Jacob's Ladder
  
Poison Dogwood, Poison Elderberry, Poison Sumac, Swamp Sumac
  
In Hindi
Jacob's Ladder
  
toxicodendron vernix
  
In German
Jacob's Ladder
  
toxicodendron vernix
  
In French
Jacob's Ladder
  
TOXICODENDRON vernix
  
In Spanish
Jacob's Ladder
  
vérnix TOXICODENDRON
  
In Greek
Jacob's Ladder
  
Toxicodendron vernix
  
In Portuguese
Jacob's Ladder
  
TOXICODENDRON vernix
  
In Polish
Jacob's Ladder
  
toxicodendron vernix
  
In Latin
Jacob's Ladder
  
Natrum vernix
  
Kingdom
Plantae
  
Plantae
  
Phylum
Tracheophyta
  
Magnoliophyta
  
Class
Magnoliopsida
  
Magnoliopsida
  
Order
Ericales
  
Sapindales
  
Family
Polemoniaceae
  
Anacardiaceae
  
Genus
Polemonium
  
Toxicodendron
  
Clade
Angiosperms, Asterids, Eudicots
  
Angiosperms, Eudicots, Rosids
  
Tribe
Not Available
  
Not Available
  
Subfamily
Not Available
  
Not Available
  
Number of Species
Not Available