Life Span
Perennial
Perennial
Type
Tree
Perennial
Origin
United States, California
-
Types
-
Kniphofia uvaria
Number of Varieties
870
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Damp Places, Marshy ground
USDA Hardiness Zone
6-96-9
0
99
👆🏻
AHS Heat Zone
9-1
9-4
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Spreading
Clump-Forming
Plant Size
Minimum Height
1,520.00 cm45.70 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm50.80 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
Yellow, Red, Orange, Pink
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
-
Leaf Color in Spring
Green, Blue Green
Green, Blue Green
Leaf Color in Summer
Green, Blue Green
Green, Blue Green
Leaf Color in Fall
Yellow, Orange, Pink
Blue Green, Gray Green, Light Yellow
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Irregular
Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Slow
Medium
Type of Soil
-
Clay, Loam, Sand
The pH of Soil
-
Acidic, Neutral
Soil Drainage
-
Well drained
Bloom Time
Spring
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
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
Soil Type
-
Clay, Loam, Sand
Soil Drainage Capacity
-
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
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
Drought
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
-
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Snails
Allergy
Pollen
-
Uses
Aesthetic Uses
Borders
Borders, Cottage Garden, Ground Cover
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Air purification
Plant Benefits
Medicinal Uses
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
-
Part of Plant Used
Leaves, Seeds, Wood
-
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Container, Cutflower, Mixed Border, Rock Garden, Wall
Botanical Name
QUERCUS douglasii
KNIPHOFIA 'Border Ballet'
Common Name
Blue Oak
Tritoma, Wisley Blue Spring Starflower, Wisley Blue Springstar
In Hindi
Blue Oak Tree
Tritoma
In German
Blaue Eiche
Tritoma
In French
Bleu Oak Tree
Tritoma
In Spanish
Azul del árbol de roble
tritoma
In Greek
Μπλε Oak Tree
tritoma
In Portuguese
Carvalho azul
Tritoma
In Polish
Niebieski Oak Tree
Tritoma
In Latin
Blue quercum ligno
Trytoma
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Asparagales
Family
Fagaceae
Liliaceae
Genus
Quercus
Kniphofia
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Tribe
-
-
Subfamily
-
-
Number of Species
2072
1
27800
👆🏻