Life Span
Perennial
Perennial
Type
Tender Perennial
Broadleaf Evergreen
Origin
Japan
Europe, Russia
Types
Spathoglottis plicata
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
52
0
40000
👆🏻
Habitat
Temperate Regions
Cold Regions, stream banks
USDA Hardiness Zone
7-96-11
0
99
👆🏻
AHS Heat Zone
9-1
-
Sunset Zone
H1, 7, 8, 9, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24
21,22
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
25.40 cm20.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Dark Red
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Light Green, Tan
Orange Red
Leaf Color in Spring
Light Green
Red, Green, Copper
Leaf Color in Summer
Green, Light Green
Green, Blue Green
Leaf Color in Fall
Green, Light Green
Green, Blue Green
Leaf Color in Winter
Light Green
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Long linear and narrow
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Spring, Late Spring, Early Summer
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground
Container, Ground
How to Plant?
From bulbs
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Requires regular watering
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, Neutral
Acidic, Neutral
Soil Type
Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Pruning
cut main flower spike, Prune after flowering, Remove damaged leaves, Remove dead branches, Remove dead leaves
Cut or pinch the stems, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Compost
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Crown rot
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
Coarse
Medium
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies, Hummingbirds, pollinators
Ants, Butterflies, pollinators
Allergy
-
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
along a porch, deck or patio, Bonsai, Bouquets, 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
-
Leaves, Twigs
Other Uses
Cut Flowers, Decoration Purposes
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Groundcover, Mixed Border, Rock Garden / Wall, Wildflower
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
CALANTHE discolor
Symphytum asperum
Common Name
Ground Orchid, Japanese Hardy Calanthe Orchid
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Ground Orchid
Blackwort
In German
Ground Orchid
Blackwort
In French
Ground Orchid
Blackwort
In Spanish
Ground Orchid
Blackwort
In Greek
Ground Orchid
Blackwort
In Portuguese
Ground Orchid
Blackwort
In Polish
Ground Orchid
Blackwort
In Latin
Ground Orchid
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Liliopsida
Magnoliopsida
Order
Asparagales
Lamiales
Family
Orchidaceae
Boraginaceae
Genus
Bletilla
Symphytum
Clade
Angiosperms, Monocots
Angiosperms, Eudicots, Rosids
Tribe
Arethuseae
-
Subfamily
Epidendroideae
Boraginoideae
Number of Species
535
1
27800
👆🏻