Life Span
Perennial
Biennial
Type
Perennial
Tree
Origin
-
Central United States, Canada
Types
Kniphofia uvaria
Two-petal ash, Single-leaf ash, Fragrant ash
Number of Varieties
7065
0
40000
👆🏻
Habitat
Damp Places, Marshy ground
Dry areas, Hills, limestone outcrops, Moist woods
USDA Hardiness Zone
6-94-8
0
99
👆🏻
AHS Heat Zone
9-4
8-4
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
2a, 2b, 3a, 3b, 4, 5, 6
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
45.70 cm2,500.00 cm
0
3900
👆🏻
Minimum Width
50.80 cm100.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Red, Orange, Pink
Green, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Green, Tan
Leaf Color in Spring
Green, Blue Green
Green
Leaf Color in Summer
Green, Blue Green
Green
Leaf Color in Fall
Blue Green, Gray Green, Light Yellow
Yellow, Light Yellow
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Linear
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Medium
Fast
Type of Soil
Clay, Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Early Summer, Summer
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Container, Ground
Ground
How to Plant?
Divison, Seedlings
Seedlings, Transplanting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Needs more water during establishment, Water Deeply, Water in morning to avoid prompting diseases, Water in the early morning hours
Average Water Needs
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Clay, Loam
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun
Pruning
Cut or pinch the stems, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Apply N-P-K
All-Purpose Liquid Fertilizer
Pests and Diseases
Onion thrips, Red blotch, Root rot
Red blotch
Plant Tolerance
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
Coarse
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Snails
Birds
Allergy
-
-
Uses
Aesthetic Uses
Borders, Cottage Garden, Ground Cover
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Shadow Tree
Plant Benefits
Medicinal Uses
-
-
Part of Plant Used
-
Inner Bark, Seeds
Other Uses
-
Used as a dye, Used for woodware, Wood is used in construction
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Cutflower, Mixed Border, Rock Garden, Wall
Shade Trees, Street Trees
Botanical Name
KNIPHOFIA 'Border Ballet'
FRAXINUS quadrangulata
Common Name
Tritoma, Wisley Blue Spring Starflower, Wisley Blue Springstar
Blue Ash
In Hindi
Tritoma
Blue Ash plant
In German
Tritoma
Blue Ash Pflanze
In French
Tritoma
usine Blue Ash
In Spanish
tritoma
planta de Blue Ash
In Greek
tritoma
φυτό Blue Ash
In Portuguese
Tritoma
planta Blue Ash
In Polish
Tritoma
Blue Ash roślin
In Latin
Trytoma
Blue Ash herba
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asparagales
Scrophulariales
Family
Liliaceae
Oleaceae
Genus
Kniphofia
Fraxinus
Clade
Angiosperms, Monocots
Angiosperms, Asterids, Eudicots
Tribe
-
Oleeae
Subfamily
-
-
Number of Species
7265
1
27800
👆🏻