Life Span
Annual and Perennial
Perennial
Type
Flowering Plants, Shrubs
Tree
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
North America
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Water elm
Number of Varieties
10035
0
40000
👆🏻
Habitat
Forest edges, Hillside, Woods
Floodplains, Hillside, stream banks, Swamps, Upland
USDA Hardiness Zone
2-113-9
0
99
👆🏻
AHS Heat Zone
7 - 1
9-1
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
30.00 cm1,830.00 cm
0
3900
👆🏻
Minimum Width
30.00 cm910.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
Tan
Leaf Color in Spring
Sea Green, Gray Green
Light Green
Leaf Color in Summer
Sea Green, Gray Green
Dark Green
Leaf Color in Fall
Sea Green, Gray Green
Light Yellow
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Oblovate
Oblique base
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Very Fast
Fast
Type of Soil
Loam, Sand
Loam
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Indeterminate
Early Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Cold climate, Drought, Pollution, Salt
Where to Plant?
Container, Ground, Pot
Ground
How to Plant?
Seedlings
Rooted stem cutting, Seedlings, Stem Planting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Keep ground moist, Requires a lot of watering, Requires regular watering, Requires watering in the growing season
Average Water Needs, Requires regular watering, Requires watering in the growing season, Water Deeply
In Summer
Lots of watering
Ample Water
In Spring
Moderate
Average Water
In Winter
Average Water
Average Water
Soil
Soil pH
Slightly Acidic
Acidic, Neutral
Soil Type
Loamy
Loam
Soil Drainage Capacity
Loamy
Average
Sun Exposure
Full Sun
Full Sun
Pruning
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove dead branches, Remove dead or diseased plant parts, Remove hanging branches
Fertilizers
Compost
Fertilize every year, fertilize in growing season, Nitrogen, Phosphorous, Potassium
Pests and Diseases
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Bark beetles, Beetles, Borers, Mites, Moth, Red blotch, Scale
Plant Tolerance
Drought
Cold climate, Drought, Salt
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
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
-
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
allergic reaction, Asthma
Uses
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Landscape Designing
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Absorbs greenhouse gases, Absorbs huge amounts of CO2, Air purification, Food for birds, Forms dense stands, Nesting sites for birds, Prevent Soil Erosion, Shelter for wildlife, Wildlife
Plant Benefits
Medicinal Uses
Fever, Kidney problems, Urinary tract problems
Antispasmodic, Astringent
Part of Plant Used
Flowers, Root
Bark, Stem, Tree trunks, Wood
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 firewood, Used for woodware, Used in biomass, Used in construction, Used in Furniture, Used in paper industry, Used in pulpwood and lumber production, Wood is used for making furniture, Wood is used for ship building, Wood is used fore making tools, Wood is used in construction, Wood log is used in making fences
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Herb
Feature Plant, Shade Trees, Street Trees
Botanical Name
CENTAUREA cyanus
ULMUS americana
Common Name
Batchelor's Buttons, Cornflower
American Elm
In Hindi
Hydrangea
अमेरिकी एल्म
In German
Hortensie
amerikanische Ulme
In French
Hortensia
orme d'Amérique
In Spanish
Hortensia
olmo americano
In Greek
υδραγεία
American Elm
In Portuguese
Hortênsia
olmo americano
In Polish
Hortensja
Amerykański wiązu
In Latin
Hibiscus
Latin ulmo
Kingdom
Plantae
Plantae
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Rosales
Family
Asteraceae
Ulmaceae
Genus
Centaurea
Ulmus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Cynareae
-
Subfamily
Carduoideae
-
Number of Species
25040
1
27800
👆🏻