Life Span
Perennial
Perennial
Type
Succulent
Broadleaf Evergreen
Origin
Western United States, Mexico
Europe, Russia
Types
Dudleya brittonii
Dudleya pulverulenta
Dudleya farinosa
Dudleya caespitosa
Dudleya virens
Symphytum officinale (common comfrey), Symphytum asperum (rough comfrey)
Number of Varieties
302
0
40000
👆🏻
Habitat
Barren waste areas, Semi arid regions, Semi desert
Cold Regions, stream banks
USDA Hardiness Zone
-99996-11
0
99
👆🏻
AHS Heat Zone
12-1
-
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
21,22
Habit
Rosette/Stemless
Upright/Erect
Plant Size
Minimum Height
7.60 cm20.00 cm
0
3900
👆🏻
Minimum Width
7.60 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Yellow, Red, Pink
White, Light Pink
Flower Color Modifier
-
Bicolor
Fruit Color
-
Orange Red
Leaf Color in Spring
Green, Gray
Red, Green, Copper
Leaf Color in Summer
Green, Gray
Green, Blue Green
Leaf Color in Fall
Green, Gray
Green, Blue Green
Leaf Color in Winter
Green, Gray
Red, Dark Green, Burgundy, Bronze
Shape
Leaf Shape
Acuminate
Oval
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Medium
Type of Soil
Sand
Loam, Sand
The pH of Soil
Neutral
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Summer
Late Spring, Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground
Container, Ground
How to Plant?
Cuttings, Stem Cutting
Root Division, Transplanting
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Allow soil to be completely dry in between waterings, Needs less 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
Soil pH
Neutral
Acidic, Neutral
Soil Type
Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Cut or pinch the stems, Remove dead leaves
Fertilizers
No fertilizers needed
14-14-14 Fertilizer, All-Purpose Liquid Fertilizer, can go long without fertilizers
Pests and Diseases
Cochineal insect, Mealybugs, Nematodes, Red blotch, Rodent, Scale insects
Aphids, Stem spot
Plant Tolerance
Drought, Dry Conditions, Dry soil, Full Sun, Shade areas
Shallow soil, Sun
Flowers
Showy
Showy
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Bold
Medium
Foliage Sheen
Matte
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Hummingbirds, 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
Leaves
Leaves, Twigs
Other Uses
-
Used for its medicinal properties
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Houseplant, Mixed Border, Rock Garden, Wall
Container, Feature Plant, Foundation, Groundcover, Hedges, Mixed Border, Tropical
Botanical Name
DUDLEYA
Symphytum asperum
Common Name
Chalk Lettuce
Chalk dudleya
Comfrey,Black Root, Blackwort, Bruisewort
In Hindi
Dudleya
Blackwort
In German
Dudleya
Blackwort
In French
Dudleya
Blackwort
In Spanish
dudleya
Blackwort
In Greek
Dudleya
Blackwort
In Portuguese
Dudleya
Blackwort
In Polish
Dudleya
Blackwort
In Latin
Dudley
Blackwort
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Saxifragales
Lamiales
Family
Crassulaceae
Boraginaceae
Genus
Dudleya
Symphytum
Clade
Angiosperms, Core eudicots, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
Boraginoideae
Number of Species
4535
1
27800
👆🏻