Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Shrub
Origin
Europe, Russia
Eastern Asia, China, Japan, Korea
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Acer palmatum
Number of Varieties
2700
0
40000
👆🏻
Habitat
Cold Regions, stream banks
gardens, Woodland Garden Secondary, Woodlands
USDA Hardiness Zone
6-114-7
0
99
👆🏻
AHS Heat Zone
-
8-2
Sunset Zone
21,22
A3, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Oval or Rounded
Plant Size
Minimum Height
20.00 cm150.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Pink
Red
Flower Color Modifier
Bicolor
-
Fruit Color
Orange Red
Red, Brown
Leaf Color in Spring
Red, Green, Copper
Red, Burgundy, Dark Red, Copper
Leaf Color in Summer
Green, Blue Green
Red, Green, Bronze
Leaf Color in Fall
Green, Blue Green
Red, Crimson, Orange Red
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Shape
Leaf Shape
Oval
Palmate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Partial Sun, Partial shade
Growth Rate
Medium
Slow
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer
Early Spring, Spring, Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
-
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Budding, Seedlings, Stem Cutting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs, Needs less watering
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
Average
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun, Partial shade
Pruning
Cut or pinch the stems, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
All-Purpose Liquid Fertilizer, Apply N-P-K, since leafy plants, use higher nitrogen content fertilizer
Pests and Diseases
Aphids, Stem spot
Aphids, Beetles, Mealybugs, Red blotch, Scale, Sooty Mold
Plant Tolerance
Shallow soil, Sun
Drought, Full Sun, Shade areas
Flowers
Showy
Insignificant
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
Fine
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Ants, Butterflies, pollinators
-
Allergy
Antibacterial, Peripheral Edema
-
Uses
Aesthetic Uses
Cottage Garden, Showy Purposes
Bonsai, Borders
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Plant Benefits
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
-
Part of Plant Used
Leaves, Twigs
Sap
Other Uses
Used for its medicinal properties
Used as preservative
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Feature Plant, Foundation, Mixed Border
Botanical Name
Symphytum asperum
ACER palmatum 'Skeeter's Broom'
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Downy Japanese Maple, Fullmoon Maple, Japanese Maple
In Hindi
Blackwort
Japanese Maple
In German
Blackwort
japanischer Ahorn
In French
Blackwort
érable du Japon
In Spanish
Blackwort
arce japonés
In Greek
Blackwort
Japanese Maple
In Portuguese
Blackwort
bordo japonês
In Polish
Blackwort
Klon japoński
In Latin
Blackwort
Acer palmatum
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Sapindales
Family
Boraginaceae
Aceraceae
Genus
Symphytum
Acer
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
Boraginoideae
-
Number of Species
35128
1
27800
👆🏻