Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Fruit
Origin
Europe, Russia
Southern Asia, India, Melanesia, Australia
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
etrog
Habitat
Cold Regions, stream banks
Mediterranean region, Subtropical climates, Tropical regions
USDA Hardiness Zone
6-11
9-11
Sunset Zone
21,22
H1, H2, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Oval or Rounded
Flower Color
White, Light Pink
White, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Yellow
Leaf Color in Spring
Red, Green, Copper
Green, Dark Green
Leaf Color in Summer
Green, Blue Green
Green, Dark Green
Leaf Color in Fall
Green, Blue Green
Green, Dark Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Light Green
Leaf Shape
Oval
Ovate elongated
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer, Summer
Early Spring, Spring, Winter, Late Winter, Indeterminate
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Seedlings, Transplanting
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Needs less watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
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
Pests and Diseases
Aphids, Stem spot
Aphids, Citrus foot rot, Leafminers, Red blotch
Plant Tolerance
Shallow soil, Sun
Drought
Flower Petal Number
Single
Single
Fragrant Bark/Stem
No
Yes
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Glossy
Attracts
Ants, Butterflies, pollinators
Birds, Butterflies
Allergy
Antibacterial, Peripheral Edema
Mild Allergen
Aesthetic Uses
Cottage Garden, Showy Purposes
Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Brightens the skin complexion, Good for skin and hair
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Antibiotic, Antidote, Pulmonary afflictions, Recovering internal injuries
Part of Plant Used
Leaves, Twigs
Fruits, Leaves
Other Uses
Used for its medicinal properties
Used as a nutritious food item, Used As Food, Used for its medicinal properties
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Container, Edible, Feature Plant, Fruit / Fruit Tree, Hedges, Houseplant, Shade Trees, Topiary / Bonsai / Espalier, Tropical
Botanical Name
Symphytum asperum
CITRUS medica
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Citron
In German
Blackwort
Zitrone
In French
Blackwort
Citron
In Spanish
Blackwort
Cidra
In Portuguese
Blackwort
cidra
In Polish
Blackwort
Cytryna
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Lamiales
Sapindales
Family
Boraginaceae
Rutaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
Boraginoideae
Aurantioideae
Season and Care of Comfrey and Citron
Season and care of Comfrey and Citron is important to know. While considering everything about Comfrey and Citron Care, growing season is an essential factor. Comfrey season is Spring, Summer, Fall and Winter and Citron season is Spring, Summer, Fall and Winter. The type of soil for Comfrey is Loam, Sand and for Citron is Clay, Loam, Sand while the PH of soil for Comfrey is Acidic, Neutral and for Citron is Acidic, Neutral.
Comfrey and Citron Physical Information
Comfrey and Citron physical information is very important for comparison. Comfrey height is 20.00 cm and width 90.00 cm whereas Citron height is 240.00 cm and width 180.00 cm. The color specification of Comfrey and Citron are as follows:
Comfrey flower color: White and Light Pink
Comfrey leaf color: Red, Green and Copper
Citron flower color: White and Purple
- Citron leaf color: Green and Dark Green
Care of Comfrey and Citron
Care of Comfrey and Citron include pruning, fertilizers, watering etc. Comfrey pruning is done Cut or pinch the stems and Remove dead leaves and Citron pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Comfrey needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Citron needs Lots of watering and in winter, it needs Average Water.