Life Span
Perennial
Perennial
Origin
Central Asia, India, Nepal
Southern Asia, India, Melanesia, Australia
Types
White oak, Bluff oak, Muller oak
etrog
Habitat
Clay soil areas, Dry areas, Sandy areas
Mediterranean region, Subtropical climates, Tropical regions
USDA Hardiness Zone
6-9
9-11
Sunset Zone
H1, 7, 8, 9, 14, 15, 16, 17, 20, 21, 22, 23, 24
H1, H2, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Oval or Rounded
Flower Color
Red, Yellow green
White, Purple
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Sandy Brown, Sienna
Yellow
Leaf Color in Spring
Green, Light Green, Gray
Green, Dark Green
Leaf Color in Summer
Green, Gray
Green, Dark Green
Leaf Color in Fall
Green, Dark Green, Gray
Green, Dark Green
Leaf Color in Winter
Dark Green, Gray
Light Green
Leaf Shape
broad, flat
Ovate elongated
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Loam
Clay, Loam, Sand
The pH of Soil
Acidic
Acidic, Neutral
Soil Drainage
Average
Well drained
Bloom Time
Spring
Early Spring, Spring, Winter, Late Winter, Indeterminate
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings, Transplanting
Seedlings, Transplanting
Plant Maintenance
Medium
Medium
Watering Requirements
Average Water Needs
Needs less watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic
Acidic, Neutral
Soil Type
Loam
Clay, Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Aphids, Citrus foot rot, Leafminers, Red blotch
Plant Tolerance
Drought
Drought
Flower Petal Number
-
Single
Fragrant Bark/Stem
No
Yes
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Glossy
Attracts
Birds
Birds, Butterflies
Allergy
Pollen
Mild Allergen
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
Brightens the skin complexion, Good for skin and hair
Environmental Uses
Air purification, Nesting sites for birds, Shadow Tree, Shelter for wildlife, Wildlife
Air purification
Medicinal Uses
Chronic fatigue, Cramps, Diarrhea, Dysentry, gallstones, Haemorrhages, Menstrual Cramps
Antibiotic, Antidote, Pulmonary afflictions, Recovering internal injuries
Part of Plant Used
Leaves, Seeds, Wood
Fruits, Leaves
Other Uses
Used as firewood, used for making charcoal
Used as a nutritious food item, Used As Food, Used for its medicinal properties
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees
Container, Edible, Feature Plant, Fruit / Fruit Tree, Hedges, Houseplant, Shade Trees, Topiary / Bonsai / Espalier, Tropical
Botanical Name
QUERCUS leucotrichophora
CITRUS medica
Common Name
Banj Oak, Blackjack Oak, Himalayan Oak
Citron
In Hindi
Blackjack Oak Tree
नीबू
In German
Blackjack Oak Tree
Zitrone
In French
Blackjack Oak Tree
Citron
In Spanish
Blackjack Oak Tree
Cidra
In Greek
Blackjack Oak Tree
Κίτρο
In Portuguese
Blackjack Carvalho
cidra
In Polish
Blackjack Oak Tree
Cytryna
In Latin
Blackjack quercum ligno
Chron
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
-
Aurantioideae
Season and Care of Blackjack Oak and Citron
Season and care of Blackjack Oak and Citron is important to know. While considering everything about Blackjack Oak and Citron Care, growing season is an essential factor. Blackjack Oak season is Spring, Summer, Fall and Winter and Citron season is Spring, Summer, Fall and Winter. The type of soil for Blackjack Oak is Loam and for Citron is Clay, Loam, Sand while the PH of soil for Blackjack Oak is Acidic and for Citron is Acidic, Neutral.
Blackjack Oak and Citron Physical Information
Blackjack Oak and Citron physical information is very important for comparison. Blackjack Oak height is 2,286.00 cm and width 1,219.20 cm whereas Citron height is 240.00 cm and width 180.00 cm. The color specification of Blackjack Oak and Citron are as follows:
Blackjack Oak flower color: Red and Yellow green
Blackjack Oak leaf color: Green, Light Green and Gray
Citron flower color: White and Purple
- Citron leaf color: Green and Dark Green
Care of Blackjack Oak and Citron
Care of Blackjack Oak and Citron include pruning, fertilizers, watering etc. Blackjack Oak pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves and Citron pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Blackjack Oak needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Citron needs Lots of watering and in winter, it needs Average Water.