Life Span
Perennial
Perennial
Type
Flowering Plants, Succulent
Broadleaf Evergreen
Origin
Southeastern United States
Europe, Russia
Types
Golden Sword, Ivory Tower, Color Guard
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
152
0
40000
👆🏻
Habitat
Dry areas, Hot climate regions
Cold Regions, stream banks
USDA Hardiness Zone
4-106-11
0
99
👆🏻
AHS Heat Zone
-
-
Sunset Zone
8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
21,22
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
45.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
60.00 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White
White, Light Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Orange Red
Leaf Color in Spring
Green
Red, Green, Copper
Leaf Color in Summer
Green
Green, Blue Green
Leaf Color in Fall
Green, Several shades of Green
Green, Blue Green
Leaf Color in Winter
Green
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Long Linear
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Neutral, Slightly Acidic, Slightly Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Early Summer, Late Summer, Summer
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground
Container, Ground
How to Plant?
Seedlings
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Do not let dry out between waterings
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
Soil pH
-
Acidic, Neutral
Soil Type
-
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Prune if you want to improve plant shape, Remove damaged leaves, Remove dead or diseased plant parts
Cut or pinch the stems, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Do not let fertilizers touch the leaves, Less fertilizing
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Bacterial Blight, Botrytis Blight, Leaf spot
Aphids, Stem spot
Plant Tolerance
Drought
Shallow soil, Sun
Flowers
✔
✘
✔
✘
Flower Petal Number
Single, Double
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Fine
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies, Flies
Ants, Butterflies, pollinators
Allergy
-
Antibacterial, Peripheral Edema
Uses
Aesthetic Uses
Showy Purposes
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
Flowers, Root
Leaves, Twigs
Other Uses
Decoration Purposes
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Cottage garden
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
Yucca filamentosa
Symphytum asperum
Common Name
Adam's needle, common yucca, Spanish bayonet, bear-grass, needle-palm, silk-grass, and spoon-leaf yucca
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Adam's needle
Blackwort
In German
Fädige Palmlilie
Blackwort
In French
Yucca filamentosa
Blackwort
In Spanish
Yucca filamentosa
Blackwort
In Greek
Adam's Needle
Blackwort
In Portuguese
Adam's Needle
Blackwort
In Polish
Jukka karolińska
Blackwort
In Latin
Adam's Needle
Blackwort
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Liliopsida
Magnoliopsida
Order
Liliales
Lamiales
Family
Agavaceae
Boraginaceae
Genus
Yucca
Symphytum
Clade
Angiosperms, Monocots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
Agavoideae
Boraginoideae
Number of Species
3035
1
27800
👆🏻