Life Span
Perennial
  
Perennial
  
Type
Tree
  
Fruit
  
Origin
United States, California
  
Southern Asia, India, Melanesia, Australia
  
Types
Not Available
  
etrog
  
Habitat
Woodland Garden Canopy
  
Mediterranean region, Subtropical climates, Tropical regions
  
USDA Hardiness Zone
6-9
  
9-11
  
AHS Heat Zone
9-1
  
12-9
  
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 cm
  
28
Minimum Width
1,370.00 cm
  
12
Plant Color
  
  
Flower Color
Red, Yellow green
  
White, Purple
  
Flower Color Modifier
Bicolor
  
Bicolor
  
Fruit Color
Not Available
  
Yellow
  
Leaf Color in Spring
Green, Blue Green
  
Green, Dark Green
  
Leaf Color in Summer
Green, Blue Green
  
Green, Dark Green
  
Leaf Color in Fall
Yellow, Orange, Pink
  
Green, Dark Green
  
Leaf Color in Winter
Not Available
  
Light Green
  
Shape
  
  
Leaf Shape
Irregular
  
Ovate elongated
  
Thorns
No
  
Yes
  
Plant Season
Spring, Summer, Fall, Winter
  
Spring, Summer, Fall, Winter
  
Growing Conditions
  
  
Sunlight
Full Sun, Partial Sun
  
Full Sun, Partial Sun
  
Growth Rate
Slow
  
Medium
  
Type of Soil
Not Available
  
Clay, Loam, Sand
  
The pH of Soil
Not Available
  
Acidic, Neutral
  
Soil Drainage
Not Available
  
Well drained
  
Bloom Time
Spring
  
Early Spring, Spring, Winter, Late Winter, Indeterminate
  
Repeat Bloomer
No
  
Yes
  
Tolerances
Drought
  
Drought
  
Where to Plant?
Ground
  
Ground
  
How to Plant?
Seedlings
  
Seedlings, Transplanting
  
Plant Maintenance
Medium
  
Medium
  
Watering Plants
  
  
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
  
  
Soil pH
Not Available
  
Acidic, Neutral
  
Soil Type
Not Available
  
Clay, Loam, Sand
  
Soil Drainage Capacity
Not Available
  
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
  
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
  
Flowers
Insignificant
  
Showy
  
Flower Petal Number
Not Available
  
Single
  
Fruits
  
  
Showy Fruit
Yes
  
Yes
  
Edible Fruit
No
  
Yes
  
Fragrance
  
  
Fragrant Flower
No
  
Yes
  
Fragrant Fruit
No
  
Yes
  
Fragrant Leaf
No
  
Yes
  
Fragrant Bark/Stem
No
  
Yes
  
Showy Foliage
Yes
  
No
  
Showy Bark
Yes
  
No
  
Foliage Texture
Medium
  
Medium
  
Foliage Sheen
Not Available
  
Glossy
  
Evergreen
No
  
No
  
Invasive
No
  
No
  
Self-Sowing
Yes
  
Yes
  
Attracts
Birds
  
Birds, Butterflies
  
Allergy
Pollen
  
Mild Allergen
  
Uses
  
  
Aesthetic Uses
Borders
  
Showy Purposes
  
Beauty Benefits
Not Available
  
Brightens the skin complexion, Good for skin and hair
  
Edible Uses
Yes
  
Yes
  
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
  
Antibiotic, Antidote, Pulmonary afflictions, Recovering internal injuries
  
Part of Plant Used
Leaves, Seeds, Wood
  
Fruits, Leaves
  
Other Uses
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
  
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, Street Trees
  
Container, Edible, Feature Plant, Fruit / Fruit Tree, Hedges, Houseplant, Shade Trees, Topiary / Bonsai / Espalier, Tropical
  
Botanical Name
QUERCUS douglasii
  
CITRUS medica
  
Common Name
Blue Oak
  
Citron
  
In Hindi
Blue Oak Tree
  
नीबू
  
In German
Blaue Eiche
  
Zitrone
  
In French
Bleu Oak Tree
  
Citron
  
In Spanish
Azul del árbol de roble
  
Cidra
  
In Greek
Μπλε Oak Tree
  
Κίτρο
  
In Portuguese
Carvalho azul
  
cidra
  
In Polish
Niebieski Oak Tree
  
Cytryna
  
In Latin
Blue quercum ligno
  
Chron
  
Kingdom
Plantae
  
Plantae
  
Phylum
Magnoliophyta
  
Magnoliophyta
  
Class
Magnoliopsida
  
Magnoliopsida
  
Order
Fagales
  
Sapindales
  
Family
Fagaceae
  
Rutaceae
  
Genus
Quercus
  
Citrus
  
Clade
Angiosperms, Eudicots, Rosids
  
Angiosperms, Eudicots, Rosids
  
Tribe
Not Available
  
Citreae
  
Subfamily
Not Available
  
Aurantioideae
  
Number of Species
Not Available
  
Not Available
  
Importance of Blue Oak and Citron
Want to have the most appropriate plant for your garden? You might want to know the importance of Blue Oak and Citron. Basically, these two plants vary in many aspects. Compare Blue Oak and Citron as they differ in many characteristics such as their life, care, benefits, facts, etc. Every gardener must at least have the slightest clue about the plants he wants to plant in his garden. Compare their benefits, which differ in many ways like facts and uses. The medicinal use of Blue Oak is Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes and Sore throat whereas of Citron is Antibiotic, Antidote, Pulmonary afflictions and Recovering internal injuries. Blue Oak has beauty benefits as follows: Not Available while Citron has beauty benefits as follows: Not Available.
Compare Facts of Blue Oak vs Citron
How to choose the best garden plant for your garden depending upon its facts? Here garden plant comparison will help you to solve this query. Compare the facts of Blue Oak vs Citron and know which one to choose. As garden plants have benefits and other uses, allergy is also a major drawback of plants for some people. Allergic reactions of Blue Oak are Pollen whereas of Citron have Mild Allergen respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Blue Oak has showy fruits and Citron has showy fruits. Also Blue Oak is not flowering and Citron is not flowering . You can compare Blue Oak and Citron facts and facts of other plants too.