Life Span
Perennial
Perennial
Type
Tree
Fruit
Origin
United States, California
Southeastern Asia
Types
-
Citrus hystrix
Number of Varieties
81
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Deep, gardens, old gardens, Well Drained
USDA Hardiness Zone
6-99-11
0
99
👆🏻
AHS Heat Zone
9-1
12-8
Sunset Zone
3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
H1, H2, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Spreading
Oval or Rounded
Plant Size
Minimum Height
1,520.00 cm180.00 cm
0
3900
👆🏻
Minimum Width
1,370.00 cm240.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red, Yellow green
White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Yellow, Green, Yellow green
Leaf Color in Spring
Green, Blue Green
Green
Leaf Color in Summer
Green, Blue Green
Green
Leaf Color in Fall
Yellow, Orange, Pink
Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Irregular
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Slow
Fast
Type of Soil
-
Loam, Sand
The pH of Soil
-
Acidic, Neutral
Soil Drainage
-
Well drained
Bloom Time
Spring
Spring, Late Spring, Early Summer, Summer, Late Summer, Early Fall
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Average Water Needs, 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
Soil Type
-
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
Prune for shortening long shoots, Remove damaged leaves, Remove dead branches, Remove dead leaves, Thinning
Fertilizers
All-Purpose Liquid Fertilizer
Apply N-P-K, can go long without fertilizers
Pests and Diseases
Red blotch
Armored scales, Fomes root rot, Mites, Red blotch
Plant Tolerance
Drought
Cold climate, Drought, Heat And Humidity
Flowers
Insignificant
Insignificant
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
Medium
Foliage Sheen
-
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds
Birds, Butterflies
Allergy
Pollen
-
Uses
Aesthetic Uses
Borders
Bonsai
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
Blood purifier, Digestion problems, Digestive disorders
Part of Plant Used
Leaves, Seeds, Wood
Fruits, Leaves
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Making Shampoo, Used as insect repellent
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Container, Edible, Fruit / Fruit Tree, Hedges, Mixed Border
Botanical Name
QUERCUS douglasii
CITRUS hystrix
Common Name
Blue Oak
Kaffir Lime, Makrut
In Hindi
Blue Oak Tree
काफ़िर लाइम
In German
Blaue Eiche
Kaffernlimette
In French
Bleu Oak Tree
combava
In Spanish
Azul del árbol de roble
cafre
In Greek
Μπλε Oak Tree
Καφρός Lime
In Portuguese
Carvalho azul
Kaffir Lime
In Polish
Niebieski Oak Tree
kaffir wapno
In Latin
Blue quercum ligno
Cafres Lime
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Sapindales
Family
Fagaceae
Rutaceae
Genus
Quercus
Citrus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
20400
1
27800
👆🏻