Life Span
Perennial
Perennial
Type
Tree
Broadleaf Evergreen
Origin
United States, California, Mexico
Europe, Russia
Types
Standard Live Oak, Highrise Live Oak, Cathedral Live Oak
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
102
0
40000
👆🏻
Habitat
-
Cold Regions, stream banks
USDA Hardiness Zone
9-116-11
0
99
👆🏻
AHS Heat Zone
12-9
-
Sunset Zone
7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
21,22
Habit
Spreading
Upright/Erect
Plant Size
Minimum Height
610.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Light Green
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Tan, Brown
Orange Red
Leaf Color in Spring
Green
Red, Green, Copper
Leaf Color in Summer
Dark Green
Green, Blue Green
Leaf Color in Fall
Dark Green
Green, Blue Green
Leaf Color in Winter
Dark Green
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Ovate
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Early Spring
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Pollution, Drought, Salt
-
Where to Plant?
Ground
Container, Ground
How to Plant?
Stem Planting, Transplanting
Root Division, Transplanting
Plant Maintenance
Low
Low
Watering Plants
Watering Requirements
Water Deeply
Allow to dry out slightly between watering, Water daily during growing season
In Summer
Ample Water
Lots of watering
In Spring
Average Water, Ample Water
Moderate
In Winter
Once a week
Average Water
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Don't prune in the fall, Remove dead branches
Cut or pinch the stems, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Compost, Fertilize the first year, High-phosphorous fertilizers used
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Red blotch
Aphids, Stem spot
Plant Tolerance
Drought, Pollution, Salt
Shallow soil, Sun
Flowers
Insignificant
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
Medium
Medium
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies
Ants, Butterflies, pollinators
Allergy
-
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
Air purification, Fixes Nitrogen
Plant Benefits
Medicinal Uses
-
Asthma, Diarrhea, Obesity, Osteoarthritis
Part of Plant Used
Bark, Root
Leaves, Twigs
Other Uses
Used in construction, Wood is used for making furniture
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Hedges, Shade Trees, Street Trees
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
QUERCUS agrifolia
Symphytum asperum
Common Name
California Live Oak
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
पुरान बलूत
Blackwort
In German
Live Oak
Blackwort
In French
Live Oak
Blackwort
In Spanish
roble vivo
Blackwort
In Greek
live oak
Blackwort
In Portuguese
carvalho vivo
Blackwort
In Polish
Live Oak
Blackwort
In Latin
live quercu
Blackwort
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Lamiales
Family
Fagaceae
Boraginaceae
Genus
Quercus
Symphytum
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
Boraginoideae
Number of Species
60035
1
27800
👆🏻