Life Span
Annual and Perennial
Annual and Perennial
Type
Flowering Plants, Shrubs
Grass
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Africa
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Pennisetum glaucum
Number of Varieties
1007
0
40000
👆🏻
Habitat
Forest edges, Hillside, Woods
Sunny Edge, Warmer regions
USDA Hardiness Zone
2-118-11
0
99
👆🏻
AHS Heat Zone
7 - 1
12 - 8
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Upright/Erect
Plant Size
Minimum Height
30.00 cm90.00 cm
0
3900
👆🏻
Minimum Width
30.00 cm30.50 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
Brown, Purple, Purplish-black
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
Brown, Cream
Leaf Color in Spring
Sea Green, Gray Green
Purple, Dark Green, Burgundy
Leaf Color in Summer
Sea Green, Gray Green
Light Green
Leaf Color in Fall
Sea Green, Gray Green
Purple, Dark Green, Burgundy
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Oblovate
Long Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Very Fast
Very Fast
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Indeterminate
Summer, Late Summer, Early Fall, Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground, Pot
Container, Ground, Pot
How to Plant?
Seedlings
Seedlings
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
Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Slightly 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
Prune in winter, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Compost
15-0-15, All-Purpose Liquid Fertilizer
Pests and Diseases
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Alternaria Leaf Spot, eyespot, Red blotch
Plant Tolerance
Drought
Deer resistant, 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
Coarse
Foliage Sheen
Matte
-
Evergreen
✔
✘
✔
✘
Invasive
Sometimes
Sometimes
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
Aphids, Bees, Birds
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
-
Uses
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
along a porch, deck or patio, Beautification, Informal Hedge, Mixed Border, Showy Purposes, Wild gardens
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
Branch, Flowering Tips, Whole plant
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
Beneficial species for attracting pollinators, repels deer
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Herb
Bedding Plant, Container, Cutflower, Dried Flower/Everlasting, Mixed Border
Botanical Name
CENTAUREA cyanus
PENNISETUM glaucum 'purple millet'
Common Name
Batchelor's Buttons, Cornflower
Millet, Pearl Millet
In Hindi
Hydrangea
purple millet
In German
Hortensie
purple millet
In French
Hortensia
millet pourpre
In Spanish
Hortensia
purple millet
In Greek
υδραγεία
purple millet
In Portuguese
Hortênsia
purple millet
In Polish
Hortensja
purple millet
In Latin
Hibiscus
purple millet
Kingdom
Plantae
Plantae
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Asterales
Cyperales
Family
Asteraceae
Poaceae
Genus
Centaurea
Pennisetum
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Commelinids, Monocots
Tribe
Cynareae
Paniceae
Subfamily
Carduoideae
Panicoideae
Number of Species
2501
1
27800
👆🏻