Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Broadleaf Evergreen
Origin
Europe, Russia
-
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Rhododendron aberconwayi, Rhododendron bulu, Rhododendron kanehirae
Number of Varieties
2700
0
40000
👆🏻
Habitat
Cold Regions, stream banks
moist forests
USDA Hardiness Zone
6-115-8
0
99
👆🏻
AHS Heat Zone
-
-
Sunset Zone
21,22
21,22
Habit
Upright/Erect
Spreading
Plant Size
Minimum Height
20.00 cm150.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm150.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Green, Tan
Leaf Color in Spring
Red, Green, Copper
Green
Leaf Color in Summer
Green, Blue Green
Green
Leaf Color in Fall
Green, Blue Green
Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Green
Shape
Leaf Shape
Oval
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
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, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
From Rhizomes, Seedlings, Stem Planting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
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
Acidic
Soil Type
Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Pruning
Cut or pinch the stems, Remove dead leaves
Prune after flowering, Remove dead or diseased plant parts, Remove deadheads, Remove short twigs
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Apply 12-10-18 NPK, General garden fertilizer
Pests and Diseases
Aphids, Stem spot
Azalea leaf gall, Bud blast, Galls, Honey fungus, Leaf Hoppers, Leaf spot, Petal blight, Phytophthora, Powdery mildew, Rust, Silver leaf
Plant Tolerance
Shallow soil, Sun
-
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
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Butterflies, pollinators
-
Allergy
Antibacterial, Peripheral Edema
Asthma
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Making cosmetics
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Burns, Chronic fatigue, Cold, Diarrhea, Dysentry, Headache, Rheumatism
Part of Plant Used
Leaves, Twigs
Whole plant
Other Uses
Used for its medicinal properties
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
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Feature Plant, Hedges, Mixed Border, Screening, Wind Break, Topiary, Bonsai, Espalier
Botanical Name
Symphytum asperum
RHODODENDRON
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Rhododendron
In Hindi
Blackwort
rhododendron
In German
Blackwort
Rhododendron
In French
Blackwort
rhododendron
In Spanish
Blackwort
rododendro
In Greek
Blackwort
ροδοδάφνη
In Portuguese
Blackwort
rododendro
In Polish
Blackwort
rododendron
In Latin
Blackwort
Rhododendron
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Ericales
Family
Boraginaceae
Ericaceae
Genus
Symphytum
Rhododendron
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
Rhodoreae
Subfamily
Boraginoideae
Ericoideae
Number of Species
351024
1
27800
👆🏻