Life Span
Perennial
Perennial
Type
Tree
Broadleaf Evergreen
Origin
China, Korea
Europe, Russia
Types
Castanea mollissima
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
202
0
40000
👆🏻
Habitat
disturbed sites, Forest edges
Cold Regions, stream banks
USDA Hardiness Zone
4-86-11
0
99
👆🏻
AHS Heat Zone
8-1
-
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17
21,22
Habit
Spreading
Upright/Erect
Plant Size
Minimum Height
1,220.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Light Yellow, Ivory
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Light Green, Chartreuse
Orange Red
Leaf Color in Spring
Green, Gray Green
Red, Green, Copper
Leaf Color in Summer
Gray Green, Dark Green
Green, Blue Green
Leaf Color in Fall
Yellow, Gold, Tan
Green, Blue Green
Leaf Color in Winter
-
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Lobed
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
Clay, Loam
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings, Stem Planting
Root Division, Transplanting
Plant Maintenance
Low
Low
Watering Plants
Watering Requirements
Do Not over Water, Medium, Requires watering in the growing season
Allow to dry out slightly between watering, Water daily during growing season
In Summer
Adequately
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Clay, Loam
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
Pruning
Prune in fall, Remove damaged leaves, Remove dead branches, Remove dead leaves
Cut or pinch the stems, Remove dead leaves
Fertilizers
Nitrogen, Potassium
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Beetles, Leafhoppers
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
Coarse
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
Ants, Butterflies, pollinators
Allergy
Mild Allergen
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
-
Cottage Garden, Showy Purposes
Beauty Benefits
-
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Food for animals, Food for birds, Food for insects, Nesting sites for birds, Prevent Soil Erosion
Air purification, Fixes Nitrogen
Plant Benefits
Medicinal Uses
Low calories, Nutrients
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Fruits, Seeds, Stem
Leaves, Twigs
Other Uses
Food for animals, Used as firewood, Used As Food, Used in biomass
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Edible, Feature Plant, Shade Trees, Street Trees
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
CASTANEA mollissima
Symphytum asperum
Common Name
Chinese Chestnut
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
चीनी अखरोट
Blackwort
In German
chinesische Kastanie
Blackwort
In French
châtaignier chinois
Blackwort
In Spanish
Castaño chino
Blackwort
In Greek
Κινέζικο κάστανο
Blackwort
In Portuguese
castanha chinesa
Blackwort
In Polish
Kasztan chiński
Blackwort
In Latin
Chinese Chestnut
Blackwort
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Lamiales
Family
Fagaceae
Boraginaceae
Genus
Castanea
Symphytum
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
Gloxinieae
-
Subfamily
Cassidinae
Boraginoideae
Number of Species
1535
1
27800
👆🏻