Life Span
Annual and Perennial
Perennial
Type
Flowering Plants, Shrubs
Tree
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
North America, United States, Southwestern United States, California, Mexico
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Lebombo ironwood, Giant ironwood
Number of Varieties
1005
0
40000
👆🏻
Habitat
Forest edges, Hillside, Woods
Desert, Dry areas
USDA Hardiness Zone
2-118-12
0
99
👆🏻
AHS Heat Zone
7 - 1
12-9
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
8, 9, 11, 12, 13, 14, 18, 19, 20, 21, 22, 23
Habit
Upright/Erect
Spreading
Plant Size
Minimum Height
30.00 cm610.00 cm
0
3900
👆🏻
Minimum Width
30.00 cm610.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
White, Light Pink, Lavender
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
Chocolate, Black
Leaf Color in Spring
Sea Green, Gray Green
Gray Green
Leaf Color in Summer
Sea Green, Gray Green
Gray Green, Gray
Leaf Color in Fall
Sea Green, Gray Green
Gray Green, Gray
Leaf Color in Winter
Light Green
Gray Green, Gray
Shape
Leaf Shape
Oblovate
Small oblong
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Very Fast
Slow
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Indeterminate
Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground, Pot
Ground
How to Plant?
Seedlings
Transplanting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Keep ground moist, Requires a lot of watering, Requires regular watering, Requires watering in the growing season
Average Water Needs, Do Not over Water, Never Over-water
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Slightly Acidic
Acidic, Neutral, Alkaline
Soil Type
Loamy
Loam, Sand
Soil Drainage Capacity
Loamy
Well drained
Sun Exposure
Full Sun
Full Sun
Pruning
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Compost
All-Purpose Liquid Fertilizer
Pests and Diseases
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Red blotch
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
Medium
Fine
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
Butterflies
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
-
Uses
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beautification, Landscape Designing, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Air purification
Plant Benefits
Medicinal Uses
Fever, Kidney problems, Urinary tract problems
-
Part of Plant Used
Flowers, Root
Seeds, Stem
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
Carvings, Knife handles
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Herb
Rock Garden / Wall, Screening / Wind Break, Shade Trees
Botanical Name
CENTAUREA cyanus
OLNEYA tesota
Common Name
Batchelor's Buttons, Cornflower
Ironwood
In Hindi
Hydrangea
रेगिस्तान आइरनवुड
In German
Hortensie
Wüsteneisenholz
In French
Hortensia
désert Ironwood
In Spanish
Hortensia
Ironwood desierto
In Greek
υδραγεία
Ironwood έρημο
In Portuguese
Hortênsia
deserto Ironwood
In Polish
Hortensja
pustynia Ironwood
In Latin
Hibiscus
desert ironwood
Kingdom
Plantae
Plantae
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Fabales
Family
Asteraceae
Fabaceae
Genus
Centaurea
Olneya
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Cynareae
Robinieae
Subfamily
Carduoideae
Faboideae
Number of Species
25030
1
27800
👆🏻