Life Span
Perennial
Annual and Perennial
Type
Tree
Flowering Plants, Shrubs
Origin
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Types
-
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Number of Varieties
3100
0
40000
👆🏻
Habitat
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
Forest edges, Hillside, Woods
USDA Hardiness Zone
4-92-11
0
99
👆🏻
AHS Heat Zone
9-1
7 - 1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Upright/Erect
Plant Size
Minimum Height
1,220.00 cm30.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Brown
Blue, Sky Blue, Indigo, Dark Blue
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Black
Brown, Sandy Brown
Leaf Color in Spring
Green, Light Green
Sea Green, Gray Green
Leaf Color in Summer
Green, Light Green
Sea Green, Gray Green
Leaf Color in Fall
Yellow, Light Yellow, Tan
Sea Green, Gray Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Oval with a pointed tip and fine teeth along their edges
Oblovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Very Fast
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Average
Well drained
Bloom Time
Spring
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site, Pollution, Soil Compaction
Drought
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Requires a lot of watering, Requires regular watering
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
Slightly Acidic
Soil Type
Clay, Loam, Sand
Loamy
Soil Drainage Capacity
Average
Loamy
Sun Exposure
Full Sun, Partial Sun
Full Sun
Pruning
Prune in the late winter or spring, Remove dead or diseased plant parts, Shape and thin as needed
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, No need to fertilize every year
Compost
Pests and Diseases
Aphids, Red blotch, Sawfly Larvae
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Plant Tolerance
Pollution, Soil Compaction, Wet Site
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
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
Butterflies
Allergy
Asthma
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Uses
Aesthetic Uses
Showy Purposes
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Erosion control, Wildlife
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Plant Benefits
Medicinal Uses
-
Fever, Kidney problems, Urinary tract problems
Part of Plant Used
Whole plant
Flowers, Root
Other Uses
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
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, Shade Trees
Container, Herb
Botanical Name
BETULA nigra
CENTAUREA cyanus
Common Name
River Birch
Batchelor's Buttons, Cornflower
In Hindi
River Birch
Hydrangea
In German
Fluss Birch
Hortensie
In French
Birch river
Hortensia
In Spanish
river Birch
Hortensia
In Greek
ποταμός Birch
υδραγεία
In Portuguese
river Birch
Hortênsia
In Polish
Rzeka Birch
Hortensja
In Latin
Betula
Hibiscus
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Asterales
Family
Betulaceae
Asteraceae
Genus
Betula
Centaurea
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
Cynareae
Subfamily
-
Carduoideae
Number of Species
3250
1
27800
👆🏻