Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Europe, Russia
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Texas
Types
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Quercus phellos, Quercus nigra
Habitat
Cold Regions, stream banks
Hot climate regions, low mountains, Tropical regions
USDA Hardiness Zone
6-11
6-9
Sunset Zone
21,22
2a, 2b, 3a, 3b, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21
Habit
Upright/Erect
Oval or Rounded
Flower Color
White, Light Pink
Red, Light Green, Chartreuse
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Orange Red
Tan, Chocolate
Leaf Color in Spring
Red, Green, Copper
Green, Light Green
Leaf Color in Summer
Green, Blue Green
Green, Dark Green
Leaf Color in Fall
Green, Blue Green
Yellow, Orange, Sandy Brown
Leaf Color in Winter
Red, Dark Green, Burgundy, Bronze
-
Leaf Shape
Oval
Irregular
Plant Season
Spring, Summer, Fall, Winter
Spring, Fall
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
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, Late Spring
Tolerances
-
Wet Site, Pollution, Soil Compaction
Where to Plant?
Container, Ground
Ground
How to Plant?
Root Division, Transplanting
Grafting, Seedlings
Plant Maintenance
Low
Low
Watering Requirements
Allow to dry out slightly between watering, Water daily during growing season
Allow to dry out slightly between watering, Does not require lot of 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
cut main flower spike, Prune every year, 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, Bonemeal, fertilize in growing season
Pests and Diseases
Aphids, Stem spot
Azalea leaf gall, Fusarium leaf spot, Leaf rust, Mildew
Plant Tolerance
Shallow soil, Sun
Heat Tolerance, Humidity, Salt and Soil Compaction
Flowers
Showy
Insignificant
Flower Petal Number
Single
-
Foliage Texture
Medium
Fine
Foliage Sheen
Glossy
Glossy
Attracts
Ants, Butterflies, pollinators
Birds
Allergy
Antibacterial, Peripheral Edema
Eczema, Rhinitis, Runny nose
Aesthetic Uses
Cottage Garden, Showy Purposes
Landscape Designing, Showy Purposes
Beauty Benefits
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Blood purifying, Reduce Bruises, Weightloss
Environmental Uses
Air purification, Fixes Nitrogen
Air purification
Medicinal Uses
Asthma, Diarrhea, Obesity, Osteoarthritis
Gout, Obesity, Snoring
Part of Plant Used
Leaves, Twigs
Bark, Stem
Other Uses
Used for its medicinal properties
Animal Feed, Biodiesel, Recovering internal injuries
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Shade Trees, Street Trees
Botanical Name
Symphytum asperum
QUERCUS phellos
Common Name
Comfrey,Black Root, Blackwort, Bruisewort
Willow Oak
In Hindi
Blackwort
Overcup ओक
In German
Blackwort
Overcup Oak
In French
Blackwort
Overcup Oak
In Spanish
Blackwort
Overcup Roble
In Greek
Blackwort
Overcup Oak
In Portuguese
Blackwort
Overcup Oak
In Polish
Blackwort
Overcup Dąb
Class
Magnoliopsida
Magnoliopsida
Family
Boraginaceae
Fagaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
Boraginoideae
Amaryllidoideae
Season and Care of Comfrey and Willow Oak
Season and care of Comfrey and Willow Oak is important to know. While considering everything about Comfrey and Willow Oak Care, growing season is an essential factor. Comfrey season is Spring, Summer, Fall and Winter and Willow Oak season is Spring, Summer, Fall and Winter. The type of soil for Comfrey is Loam, Sand and for Willow Oak is Clay, Loam, Sand while the PH of soil for Comfrey is Acidic, Neutral and for Willow Oak is Acidic, Neutral, Alkaline.
Comfrey and Willow Oak Physical Information
Comfrey and Willow Oak physical information is very important for comparison. Comfrey height is 20.00 cm and width 90.00 cm whereas Willow Oak height is 1,220.00 cm and width 910.00 cm. The color specification of Comfrey and Willow Oak are as follows:
Comfrey flower color: White and Light Pink
Comfrey leaf color: Red, Green and Copper
Willow Oak flower color: Red, Light Green and Chartreuse
- Willow Oak leaf color: Green and Light Green
Care of Comfrey and Willow Oak
Care of Comfrey and Willow Oak include pruning, fertilizers, watering etc. Comfrey pruning is done Cut or pinch the stems and Remove dead leaves and Willow Oak pruning is done cut main flower spike, Prune every year, 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 Willow Oak needs Lots of watering and in winter, it needs Average Water.