Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
Southern Europe, Mediterranean, Northern Africa
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Quercus ilex, Quercus rotundifolia
Habitat
Cold Regions, stream banks
Mediterranean region
USDA Hardiness Zone
6-11
4-8
Sunset Zone
21,22
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Oval or Rounded
Flower Color
White, Light Pink
Red, Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Brown, Sandy Brown, Chocolate
Leaf Color in Spring
Red, Green, Copper
Green, Dark Green
Leaf Color in Summer
Green, Blue Green
Dark Green
Leaf Color in Fall
Green, Blue Green
Dark Green
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
Dark Green
Leaf Shape
Oval
Oblong or Lanceolate
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, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer, Summer
Spring
Tolerances
-
Pollution, Drought, Salt
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Grafting, Seedlings
Plant Maintenance
Low
Medium
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Average Water Needs, Do Not over Water, Requires regular 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, Alkaline
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Average
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
fertilize in fall, Nitrogen, Phosphorous, Potassium
Pests and Diseases
Aphids, Stem spot
Aphids, Moth
Plant Tolerance
Shallow soil, Sun
Pollution, Shade areas
Flowers
Showy
Insignificant
Flower Petal Number
Single
-
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Glossy
Attracts
Ants, Butterflies, pollinators
Birds, Insects
Allergy
Antibacterial, Peripheral Edema
-
Aesthetic Uses
Cottage Garden, Showy Purposes
Cottage Garden
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Good for skin, Skin Problems
Environmental Uses
Air purification, Fixes Nitrogen
Nesting sites for birds, Shadow Tree
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Digestive, Skin irritation
Part of Plant Used
Leaves, Twigs
Bark, Fruits, Wood
Other Uses
Used for its medicinal properties
Charcoal, Used as firewood, Used for its medicinal properties, Wood is used fore making tools
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Feature Plant, Hedges, Screening / Wind Break, Shade Trees, Street Trees
Botanical Name
Symphytum asperum
QUERCUS ilex
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Evergreen Oak, Holly Oak, Holm Oak
In Hindi
Blackwort
होल्म ओक
In German
Blackwort
Steineiche
In French
Blackwort
chêne vert
In Spanish
Blackwort
encina
In Greek
Blackwort
πρινόδενδρο
In Portuguese
Blackwort
azinheira
In Polish
Blackwort
dąb skalny
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Boraginaceae
Fagaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
Boraginoideae
-
Season and Care of Comfrey and Holm Oak
Season and care of Comfrey and Holm Oak is important to know. While considering everything about Comfrey and Holm Oak Care, growing season is an essential factor. Comfrey season is Spring, Summer, Fall and Winter and Holm Oak season is Spring, Summer, Fall and Winter. The type of soil for Comfrey is Loam, Sand and for Holm Oak is Clay, Loam, Sand while the PH of soil for Comfrey is Acidic, Neutral and for Holm Oak is Acidic, Neutral, Alkaline.
Comfrey and Holm Oak Physical Information
Comfrey and Holm Oak physical information is very important for comparison. Comfrey height is 20.00 cm and width 90.00 cm whereas Holm Oak height is 1,220.00 cm and width 1,070.00 cm. The color specification of Comfrey and Holm Oak are as follows:
Comfrey flower color: White and Light Pink
Comfrey leaf color: Red, Green and Copper
Holm Oak flower color: Red and Yellow green
- Holm Oak leaf color: Green and Dark Green
Care of Comfrey and Holm Oak
Care of Comfrey and Holm Oak include pruning, fertilizers, watering etc. Comfrey pruning is done Cut or pinch the stems and Remove dead leaves and Holm Oak 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 Holm Oak needs Lots of watering and in winter, it needs Average Water.