Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Broadleaf Evergreen
Origin
China
Europe, Russia
Types
Rhododendron
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
202
0
40000
👆🏻
Habitat
Well Drained
Cold Regions, stream banks
USDA Hardiness Zone
5-76-11
0
99
👆🏻
AHS Heat Zone
-
-
Sunset Zone
21,22
21,22
Habit
Cushion/Mound-forming
Upright/Erect
Plant Size
Minimum Height
25.40 cm20.00 cm
0
3900
👆🏻
Minimum Width
45.70 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Purple, Lavender, Violet
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Orange Red
Leaf Color in Spring
Blue Green
Red, Green, Copper
Leaf Color in Summer
Blue Green
Green, Blue Green
Leaf Color in Fall
Blue Green
Green, Blue Green
Leaf Color in Winter
Blue Green
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Elliptic and Ovate
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Early Spring, Spring
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Container, Pot
Container, Ground
How to Plant?
Rooted stem cutting
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Average Water Needs
Allow to dry out slightly between watering, Water daily during growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic
Acidic, Neutral
Soil Type
Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Cut or pinch the stems, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
-
Aphids, Stem spot
Plant Tolerance
Drought
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
Fine
Medium
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Ants, Butterflies, pollinators
Allergy
-
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
Beautification, Showy Purposes
Cottage Garden, Showy Purposes
Beauty Benefits
-
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Fixes Nitrogen
Plant Benefits
Medicinal Uses
-
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Flowers, Leaves
Leaves, Twigs
Other Uses
-
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Alpine, Container, Edging, Groundcover, Mixed Border, Rock Garden, Wall, Topiary, Bonsai, Espalier
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
RHODODENDRON impeditum
Symphytum asperum
Common Name
Dwarf Rhododendron, Dwarf Purple Rhododendron
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Dwarf Rhododendron
Blackwort
In German
Dwarf Rhododendron
Blackwort
In French
Dwarf Rhododendron
Blackwort
In Spanish
Dwarf Rhododendron
Blackwort
In Greek
Dwarf Rhododendron
Blackwort
In Portuguese
Dwarf Rhododendron
Blackwort
In Polish
Dwarf Rhododendron
Blackwort
In Latin
Dwarf Rhododendron
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Ericales
Lamiales
Family
Ericaceae
Boraginaceae
Genus
Rhododendron
Symphytum
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Rhodoreae
-
Subfamily
Ericoideae
Boraginoideae
Number of Species
4035
1
27800
👆🏻