Life Span
Perennial
Perennial
Type
Tree
Perennial
Origin
Northeastern United States, Mid-Atlantic United States, Central United States, Canada
-
Types
Blue ash, Single-leaf ash, Fragrant ash
Kniphofia uvaria
Number of Varieties
4570
0
40000
👆🏻
Habitat
Moist Soils
Damp Places, Marshy ground
USDA Hardiness Zone
3-76-9
0
99
👆🏻
AHS Heat Zone
7-1
9-4
Sunset Zone
-
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Clump-Forming
Plant Size
Minimum Height
1,220.00 cm45.70 cm
0
3900
👆🏻
Minimum Width
610.00 cm50.80 cm
0
6350
👆🏻
Plant Color
Flower Color
Green, Purple
Yellow, Red, Orange, Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Tan
-
Leaf Color in Spring
Green, Dark Green
Green, Blue Green
Leaf Color in Summer
Dark Green
Green, Blue Green
Leaf Color in Fall
Yellow, Yellow green, Brown, Bronze
Blue Green, Gray Green, Light Yellow
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Pinnate
Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Early Spring, Spring
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site
Drought
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Divison, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Needs more water during establishment, Water Deeply, Water in morning to avoid prompting diseases, Water in the early morning hours
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Acidic, Neutral
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Prune in fall, Prune in winter, Prune when plant is dormant, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove short twigs
Cut or pinch the stems, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer, Apply N-P-K
Pests and Diseases
Red blotch
Onion thrips, Red blotch, Root rot
Plant Tolerance
Wet Site
Drought, Moisture
Flowers
✔
✘
✔
✘
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
Coarse
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Snails
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Borders, Cottage Garden, Ground Cover
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Nesting sites for birds, Wildlife, Windbreak
Air purification
Plant Benefits
Medicinal Uses
Antirheumatic, Diaphoretic, Diuretic, Fever, Gout, Laxative, Ophthalmic, Purgative, Sore Eyes, Sore throat, Tonic
-
Part of Plant Used
Inner Bark, Leaves, Tree trunks
-
Other Uses
Basketary, Used as a dye, Used as fuel, Used for woodware
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Shade Trees, Water Gardens
Container, Cutflower, Mixed Border, Rock Garden, Wall
Botanical Name
FRAXINUS nigra
KNIPHOFIA 'Border Ballet'
Common Name
Black Ash, Brown Ash, Swamp Ash
Tritoma, Wisley Blue Spring Starflower, Wisley Blue Springstar
In Hindi
Black Ash plant
Tritoma
In German
Black Ash Pflanze
Tritoma
In French
plante Black Ash
Tritoma
In Spanish
planta de negro de Ceniza
tritoma
In Greek
φυτό μαύρη τέφρα
tritoma
In Portuguese
planta Black Ash
Tritoma
In Polish
Black Ash roślin
Tritoma
In Latin
Black ash herba
Trytoma
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Scrophulariales
Asparagales
Family
Oleaceae
Liliaceae
Genus
Fraxinus
Kniphofia
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Monocots
Tribe
Oleeae
-
Subfamily
-
-
Number of Species
1872
1
27800
👆🏻