Life Span
Perennial
Perennial
Type
Perennial
Tree
Origin
-
Eastern Asia
Types
-
Ulmus chumlia, Ulmus glabra, Ulmus elongata
Number of Varieties
5035
0
40000
👆🏻
Habitat
Cold Regions, Temperate Regions
River side
USDA Hardiness Zone
4-85-9
0
99
👆🏻
AHS Heat Zone
8-1
9-5
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Cushion/Mound-forming
Upright/Erect
Plant Size
Minimum Height
20.30 cm1,520.00 cm
0
3900
👆🏻
Minimum Width
27.90 cm1,220.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Lavender
Red
Flower Color Modifier
-
Bicolor
Fruit Color
-
Tan, Brown
Leaf Color in Spring
Green, Purple
Green
Leaf Color in Summer
Green, Purple
Dark Green
Leaf Color in Fall
Green, Purple
Yellow, Red, Green
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Linear
Toothed
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
-
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
Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Ground
How to Plant?
Seedlings
Seedlings, Stem Planting, Transplanting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Keep ground moist, Water more in summer
Average Water Needs, Requires watering in the growing season, Water when top layer of soil becomes 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
Acidic, Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Loam, Sand
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
Prune if you want to improve plant shape, Remove damaged leaves, Remove dead leaves, Remove shoots
Fertilizers
All-Purpose Liquid Fertilizer, as it is a flowering plant, use high phosphorous content fertilizer
organic fertlizers
Pests and Diseases
Red blotch
Mealybugs, Red blotch, Scale
Plant Tolerance
Drought
Drought
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
Fine
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
-
Allergy
-
allergic reaction
Uses
Aesthetic Uses
Beautification, Showy Purposes
Bonsai, Landscape Designing
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Food for birds, Food for insects, No fertilizer, pesticides, or herbicides needed, Prevent Soil Erosion
Plant Benefits
Medicinal Uses
Black Dyes
Antidote, Demulcent, Diuretic
Part of Plant Used
-
Fruits, Inner Bark, Leaves
Other Uses
-
Used as firewood, Used for its medicinal properties, Used in construction, Used in Furniture, Wood is used for making furniture, Wood is used for ship building, Wood is used in construction
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Mixed Border, Rock Garden / Wall, Wildflower
Container, Feature Plant, Mixed Border, Shade Trees, Street Trees, Topiary / Bonsai / Espalier
Botanical Name
Polemonium caeruleum
ULMUS parvifolia 'Drake'
Common Name
Jacob's Ladder
Chinese Elm, Drake Elm
In Hindi
Jacob's Ladder
चीनी एल्म
In German
Jacob's Ladder
Chinese Elm
In French
Jacob's Ladder
Elm chinoise
In Spanish
Jacob's Ladder
olmo chino
In Greek
Jacob's Ladder
Κινέζοι Elm
In Portuguese
Jacob's Ladder
Elm chinês
In Polish
Jacob's Ladder
Chiński Elm
In Latin
Jacob's Ladder
Chinese Elm
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Ericales
Rosales
Family
Polemoniaceae
Ulmaceae
Genus
Polemonium
Ulmus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Ulmeae
Subfamily
-
-
Number of Species
4035
1
27800
👆🏻