Life Span
Perennial
Perennial
Type
Perennial
Tree
Origin
-
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, North-Central United States, Central United States, South-Central United States, Canada
Types
Kniphofia uvaria
Japanese Evergreen Oak, Sawthorn Oak, Oriental White Oak
Number of Varieties
7020
0
40000
👆🏻
Habitat
Damp Places, Marshy ground
Woodland Garden Canopy
USDA Hardiness Zone
6-94-8
0
99
👆🏻
AHS Heat Zone
9-4
8-1
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, 7, 8, 9, 14, 15, 16, 17
Habit
Clump-Forming
Upright/Erect
Plant Size
Minimum Height
45.70 cm2,438.40 cm
0
3900
👆🏻
Minimum Width
50.80 cm1,219.20 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Red, Orange, Pink
Red, Light Yellow, Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Brown, Sandy Brown, Chocolate
Leaf Color in Spring
Green, Blue Green
Green, Copper
Leaf Color in Summer
Green, Blue Green
Dark Green
Leaf Color in Fall
Blue Green, Gray Green, Light Yellow
Orange, Brown, Dark Red
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Linear
Lobed
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Slow
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Early Summer, Summer
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Wet Site, 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, Keep the ground moist but not water-logged, Needs a lot of water initially, occasional watering once established, Water Deeply
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
Well drained
Average
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Cut or pinch the stems, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove branches, Remove damaged fruit, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove deadheads
Fertilizers
All-Purpose Liquid Fertilizer, Apply N-P-K
All-Purpose Liquid Fertilizer, High amounts of nutrients, organic fertlizers
Pests and Diseases
Onion thrips, Red blotch, Root rot
Red blotch
Plant Tolerance
Drought, Moisture
Drought, Wet Site
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
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Snails
Birds
Allergy
-
Hay fever, Itchy eyes, Runny nose, sneezing, Watery eyes, Whooping Cough
Uses
Aesthetic Uses
Borders, Cottage Garden, Ground Cover
-
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Nesting sites for birds, Shadow Tree, Shelter for wildlife, Wildlife
Plant Benefits
Medicinal Uses
-
Antiaphonic, Antiasthamatic, Astringent, Chronic fatigue, Cold, Dysentry, Emetic, Febrifuge, Haemorrhages, Indigestion, Opthalmic, Salve, Sore Eyes, Sore throat, Tonic, Treating fever
Part of Plant Used
-
Inner Bark, Leaves, Seeds
Other Uses
-
Tannin, Used as a dye, Used as fuel, Used as insect repellent, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Cutflower, Mixed Border, Rock Garden, Wall
Feature Plant, Shade Trees
Botanical Name
KNIPHOFIA 'Border Ballet'
QUERCUS velutina
Common Name
Tritoma, Wisley Blue Spring Starflower, Wisley Blue Springstar
Black Oak
In Hindi
Tritoma
Black Oak Tree
In German
Tritoma
Schwarz Oak Tree
In French
Tritoma
Noir Oak Tree
In Spanish
tritoma
Negro del árbol de roble
In Greek
tritoma
Black Oak Tree
In Portuguese
Tritoma
Carvalho Preto
In Polish
Tritoma
Czarny Dąb
In Latin
Trytoma
Niger quercum ligno
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asparagales
Fagales
Family
Liliaceae
Fagaceae
Genus
Kniphofia
Quercus
Clade
Angiosperms, Monocots
Angiosperms, Eudicots, Rosids
Tribe
-
Cherokee
Subfamily
-
-
Number of Species
72600
1
27800
👆🏻