Life Span
Perennial
Perennial
Type
Tender Perennial
Broadleaf Evergreen
Origin
Central America
Europe, Russia
Types
Gunnera manicata
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
252
0
40000
👆🏻
Habitat
Wet forest, Woodland Garden
Cold Regions, stream banks
USDA Hardiness Zone
9-126-11
0
99
👆🏻
AHS Heat Zone
7-1
-
Sunset Zone
H1, 14, 15, 16, 17, 20, 21, 22, 23, 24
21,22
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
120.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
180.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Dark Red, Dark Salmon, Sienna
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Orange Red
Leaf Color in Spring
Green
Red, Green, Copper
Leaf Color in Summer
Green
Green, Blue Green
Leaf Color in Fall
Green
Green, Blue Green
Leaf Color in Winter
Light Green
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Lobed
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Medium
Type of Soil
Loam
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
-
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground
Container, Ground
How to Plant?
Seedlings
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Regular watering during dry periods
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
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Partial Sun, Partial shade
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
Dilute liquid fertiliser
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Downy mildew, Leaf spot, Rust
Aphids, Stem spot
Plant Tolerance
Drought
Shallow soil, Sun
Flowers
Showy
Showy
Flower Petal Number
-
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Bold
Medium
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Snails
Ants, Butterflies, pollinators
Allergy
allergic reaction
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
Bog Garden, Water gardening
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
Stem
Leaves, Twigs
Other Uses
Jam, Jelly, Sauces
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Mixed Border, Tropical
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
GUNNERA insignis
Symphytum asperum
Common Name
Giant Rhubarb, Poorman's Umbrella
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Giant Rhubarb
Blackwort
In German
Riesen- Rhabarber
Blackwort
In French
Géant rhubarbe
Blackwort
In Spanish
Gigante ruibarbo
Blackwort
In Greek
Giant Ραβέντι
Blackwort
In Portuguese
Rhubarb gigante
Blackwort
In Polish
Giant Rabarbar
Blackwort
In Latin
Giant RHEUM
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Haloragales
Lamiales
Family
Gunneraceae
Boraginaceae
Genus
Gunnera
Symphytum
Clade
Angiosperms, Core eudicots, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
Boraginoideae
Number of Species
135
1
27800
👆🏻