Life Span
Perennial
Annual and Perennial
Type
Tender Perennial
Flowering Plants, Shrubs
Origin
Southern Africa
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Types
Perennial
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Number of Varieties
50100
0
40000
👆🏻
Habitat
Desert, Mediterranean region, Subtropical climates, Temperate Regions
Forest edges, Hillside, Woods
USDA Hardiness Zone
8-102-11
0
99
👆🏻
AHS Heat Zone
10-8
7 - 1
Sunset Zone
H1, H2, 8, 9, 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
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
61.30 cm30.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Light Yellow, Brown
Blue, Sky Blue, Indigo, Dark Blue
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Brown
Brown, Sandy Brown
Leaf Color in Spring
Green, Gray Green
Sea Green, Gray Green
Leaf Color in Summer
Green, Gray Green
Sea Green, Gray Green
Leaf Color in Fall
Green, Gray Green
Sea Green, Gray Green
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Grass like
Oblovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Very Fast
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
Indeterminate
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground, Pot
Container, Ground, Pot
How to Plant?
Rhizome division, Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
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, Alkaline
Slightly Acidic
Soil Type
Clay, Loam, Sand
Loamy
Soil Drainage Capacity
Average
Loamy
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun
Pruning
Remove dead leaves
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Any balanced general purpose fertilizer
Compost
Pests and Diseases
Nematodes, Scale
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
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
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bees, Birds, Butterflies
Butterflies
Allergy
Skin irritation
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Uses
Aesthetic Uses
Showy Purposes
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Ethnobotanic
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
Root
Flowers, Root
Other Uses
Roots were worn to protect and strengthen the wearer, Used as Ornamental plant
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
Bog Garden, Container, Feature Plant, Mixed Border, Tropical, Water Gardens
Container, Herb
Botanical Name
DIETES bicolor
CENTAUREA cyanus
Common Name
African iris, Fortnight lily
Batchelor's Buttons, Cornflower
In Hindi
African Iris
Hydrangea
In German
Afrikanische Iris
Hortensie
In French
African Iris
Hortensia
In Spanish
Iris africano
Hortensia
In Greek
Αφρικανική Iris
υδραγεία
In Portuguese
Iris africano
Hortênsia
In Polish
Afryki Iris
Hortensja
In Latin
African Iris
Hibiscus
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asparagales
Asterales
Family
Iridaceae
Asteraceae
Genus
Dietes
Centaurea
Clade
Angiosperms, Monocots
Angiosperms, Asterids, Eudicots
Tribe
Irideae
Cynareae
Subfamily
Iridoideae
Carduoideae
Number of Species
300250
1
27800
👆🏻