Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
Australia
Central Asia, India, Nepal
Types
-
White oak, Bluff oak, Muller oak
Number of Varieties
35600
0
40000
👆🏻
Habitat
Sunny Edge, Woodland Garden Secondary
Clay soil areas, Dry areas, Sandy areas
USDA Hardiness Zone
9-116-9
0
99
👆🏻
AHS Heat Zone
-
7-5
Sunset Zone
21,22
H1, 7, 8, 9, 14, 15, 16, 17, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Oval or Rounded
Plant Size
Minimum Height
610.00 cm2,286.00 cm
0
3900
👆🏻
Minimum Width
460.00 cm1,219.20 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Ivory
Red, Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Sandy Brown, Sienna
Leaf Color in Spring
Green, Dark Green
Green, Light Green, Gray
Leaf Color in Summer
Green, Dark Green
Green, Gray
Leaf Color in Fall
Green, Dark Green
Green, Dark Green, Gray
Leaf Color in Winter
Green, Dark Green
Dark Green, Gray
Shape
Leaf Shape
Linear to lanceolate
broad, flat
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Slow
Medium
Type of Soil
Loam, Sand
Loam
The pH of Soil
Acidic, Neutral, Alkaline
Acidic
Soil Drainage
Well drained
Average
Bloom Time
Early Spring, Fall, Late Winter
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Pollution, Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Cuttings, Seedlings
Seedlings, Transplanting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Water regularly for 2 months
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, Alkaline
Acidic
Soil Type
Loam, Sand
Loam
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Pruning may be required for height clearance
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Does not require fertilizer once established
All-Purpose Liquid Fertilizer
Pests and Diseases
-
Red blotch
Plant Tolerance
Drought
Drought
Flowers
✔
✘
✔
✘
Flower Petal Number
-
-
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Fine
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Blowflies, Insects
Birds
Allergy
Mild Allergen
Pollen
Uses
Aesthetic Uses
-
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Nesting sites for birds, Shadow Tree, Shelter for wildlife, Wildlife
Plant Benefits
Medicinal Uses
Anodyne, Odontalgic
Chronic fatigue, Cramps, Diarrhea, Dysentry, gallstones, Haemorrhages, Menstrual Cramps
Part of Plant Used
Wood
Leaves, Seeds, Wood
Other Uses
Used as a fodder tree in agricultural areas, Useful for shade
Used as firewood, used for making charcoal
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Hedges, Screening, Wind Break, Shade Trees, Street Trees, Topiary, Bonsai, Espalier
Feature Plant, Shade Trees
Botanical Name
GEIJERA parviflora
QUERCUS leucotrichophora
Common Name
Wilga, Native Willow
Banj Oak, Blackjack Oak, Himalayan Oak
In Hindi
Wilga
Blackjack Oak Tree
In German
Pirol
Blackjack Oak Tree
In French
loriot
Blackjack Oak Tree
In Spanish
oriol
Blackjack Oak Tree
In Greek
φλώρος
Blackjack Oak Tree
In Portuguese
papa-figos
Blackjack Carvalho
In Polish
Wilga
Blackjack Oak Tree
In Latin
oriole
Blackjack quercum ligno
Kingdom
Plantae
Plantae
Phylum
Charophyta
Magnoliophyta
Class
Equisetopsida
Magnoliopsida
Order
Sapindales
Fagales
Family
Rutaceae
Fagaceae
Genus
Geijera
Quercus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
4560
1
27800
👆🏻