Life Span
Annual
Perennial
Type
Perennial
Broadleaf Evergreen
Origin
North America, Northeastern United States, Mid-Atlantic United States, Southeastern United States, North-Central United States, South-Central United States, Canada
-
Types
Herbaceous perennial
Rhododendron aberconwayi, Rhododendron bulu, Rhododendron kanehirae
Number of Varieties
40700
0
40000
👆🏻
Habitat
Lakes, Pastures, Prairies, Roadsides, Swamps, Woodlands
moist forests
USDA Hardiness Zone
3-95-8
0
99
👆🏻
AHS Heat Zone
9-1
-
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
21,22
Habit
Clump-Forming
Spreading
Plant Size
Minimum Height
61.00 cm150.00 cm
0
3900
👆🏻
Minimum Width
25.40 cm150.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Crimson, Dark Red
Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown
Green, Tan
Leaf Color in Spring
Dark Green
Green
Leaf Color in Summer
Dark Green
Green
Leaf Color in Fall
Purple, Dark Green, Burgundy
Green
Leaf Color in Winter
Light Green
Green
Shape
Leaf Shape
Lanceolate
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Loam
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic
Soil Drainage
Poorly Drained
Well drained
Bloom Time
Early Summer, Summer
Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground
Ground
How to Plant?
Cuttings, Divison, Seedlings
From Rhizomes, Seedlings, Stem Planting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Medium
Do Not over Water, Keep ground moist
In Summer
Lots of watering
Consistently
In Spring
Moderate
Moderate
In Winter
Average Water
Ample Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Acidic
Soil Type
Loam
Loam, Sand
Soil Drainage Capacity
Poorly Drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Prune after flowering, Remove dead or diseased plant parts, Remove deadheads, Remove short twigs
Fertilizers
All-Purpose Liquid Fertilizer
Apply 12-10-18 NPK, General garden fertilizer
Pests and Diseases
Red blotch
Azalea leaf gall, Bud blast, Galls, Honey fungus, Leaf Hoppers, Leaf spot, Petal blight, Phytophthora, Powdery mildew, Rust, Silver leaf
Plant Tolerance
Drought
-
Flowers
✔
✘
✔
✘
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
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies, Insects
-
Allergy
-
Asthma
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
Making cosmetics
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Headache, Rheumatism, Stomach pain
Burns, Chronic fatigue, Cold, Diarrhea, Dysentry, Headache, Rheumatism
Part of Plant Used
Flowers, Leaves, Root
Whole plant
Other Uses
Medicinal oil, Showy Purposes
Cosmetics, Employed in herbal medicine, Oil is used for aromatherapy, Oil is used in perfume, soaps, creams, etc., Sometimes used for making wine
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bog Garden, Mixed Border, Water Gardens, Wildflower
Feature Plant, Hedges, Mixed Border, Screening, Wind Break, Topiary, Bonsai, Espalier
Botanical Name
LOBELIA cardinalis
RHODODENDRON
Common Name
Cardinal Flower
Rhododendron
In Hindi
Cardinal Flower
rhododendron
In German
Cardinal Flower
Rhododendron
In French
Cardinal Flower
rhododendron
In Spanish
Cardinal Flower
rododendro
In Greek
Καρδινάλιος λουλούδι
ροδοδάφνη
In Portuguese
Cardinal Flower
rododendro
In Polish
Cardinal Flower
rododendron
In Latin
Cardinalis Flower
Rhododendron
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Ericales
Family
Lobeliaceae
Ericaceae
Genus
Lobelia
Rhododendron
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Rhodoreae
Subfamily
Lobelioideae
Ericoideae
Number of Species
561024
1
27800
👆🏻