Life Span
Perennial
Perennial
Type
Tree
Broadleaf Evergreen
Origin
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States, Texas
Europe, Russia
Types
Quercus phellos, Quercus nigra
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Habitat
Hot climate regions, low mountains, Tropical regions
Cold Regions, stream banks
USDA Hardiness Zone
6-9
6-11
Sunset Zone
2a, 2b, 3a, 3b, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21
21,22
Habit
Oval or Rounded
Upright/Erect
Flower Color
Red, Light Green, Chartreuse
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Tan, Chocolate
Orange Red
Leaf Color in Spring
Green, Light Green
Red, Green, Copper
Leaf Color in Summer
Green, Dark Green
Green, Blue Green
Leaf Color in Fall
Yellow, Orange, Sandy Brown
Green, Blue Green
Leaf Color in Winter
-
Red, Dark Green, Burgundy, Bronze
Leaf Shape
Irregular
Oval
Plant Season
Spring, Fall
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Spring, Late Spring
Late Spring, Early Summer, Summer
Tolerances
Wet Site, Pollution, Soil Compaction
-
Where to Plant?
Ground
Container, Ground
How to Plant?
Grafting, Seedlings
Root Division, Transplanting
Plant Maintenance
Low
Low
Watering Requirements
Allow to dry out slightly between watering, Does not require lot of watering
Allow to dry out slightly between watering, Water daily during growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
cut main flower spike, Prune every year, Remove damaged leaves, Remove dead branches, Remove dead leaves
Cut or pinch the stems, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Bonemeal, fertilize in growing season
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Azalea leaf gall, Fusarium leaf spot, Leaf rust, Mildew
Aphids, Stem spot
Plant Tolerance
Heat Tolerance, Humidity, Salt and Soil Compaction
Shallow soil, Sun
Flowers
Insignificant
Showy
Flower Petal Number
-
Single
Foliage Texture
Fine
Medium
Foliage Sheen
Glossy
Glossy
Attracts
Birds
Ants, Butterflies, pollinators
Allergy
Eczema, Rhinitis, Runny nose
Antibacterial, Peripheral Edema
Aesthetic Uses
Landscape Designing, Showy Purposes
Cottage Garden, Showy Purposes
Beauty Benefits
Blood purifying, Reduce Bruises, Weightloss
Acne, Beautiful Skin, Reduce Bruises, Remove blemishes
Environmental Uses
Air purification
Air purification, Fixes Nitrogen
Medicinal Uses
Gout, Obesity, Snoring
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Bark, Stem
Leaves, Twigs
Other Uses
Animal Feed, Biodiesel, Recovering internal injuries
Used for its medicinal properties
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Shade Trees, Street Trees
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
QUERCUS phellos
Symphytum asperum
Common Name
Willow Oak
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Overcup ओक
Blackwort
In German
Overcup Oak
Blackwort
In French
Overcup Oak
Blackwort
In Spanish
Overcup Roble
Blackwort
In Greek
Overcup Oak
Blackwort
In Portuguese
Overcup Oak
Blackwort
In Polish
Overcup Dąb
Blackwort
Class
Magnoliopsida
Magnoliopsida
Family
Fagaceae
Boraginaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
Amaryllidoideae
Boraginoideae
Season and Care of Willow Oak and Comfrey
Season and care of Willow Oak and Comfrey is important to know. While considering everything about Willow Oak and Comfrey Care, growing season is an essential factor. Willow Oak season is Spring and Fall and Comfrey season is Spring and Fall. The type of soil for Willow Oak is Clay, Loam, Sand and for Comfrey is Loam, Sand while the PH of soil for Willow Oak is Acidic, Neutral, Alkaline and for Comfrey is Acidic, Neutral.
Willow Oak and Comfrey Physical Information
Willow Oak and Comfrey physical information is very important for comparison. Willow Oak height is 1,220.00 cm and width 910.00 cm whereas Comfrey height is 20.00 cm and width 90.00 cm. The color specification of Willow Oak and Comfrey are as follows:
Willow Oak flower color: Red, Light Green and Chartreuse
Willow Oak leaf color: Green and Light Green
Comfrey flower color: White and Light Pink
- Comfrey leaf color: Red, Green and Copper
Care of Willow Oak and Comfrey
Care of Willow Oak and Comfrey include pruning, fertilizers, watering etc. Willow Oak pruning is done cut main flower spike, Prune every year, Remove damaged leaves, Remove dead branches and Remove dead leaves and Comfrey pruning is done Cut or pinch the stems and Remove dead leaves. In summer Willow Oak needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Comfrey needs Lots of watering and in winter, it needs Average Water.