Life Span
Perennial
Perennial
Origin
United States, California
Southern Asia, India, Melanesia, Australia
Habitat
Woodland Garden Canopy
Mediterranean region, Subtropical climates, Tropical regions
USDA Hardiness Zone
6-9
9-11
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
Flower Color
Red, Yellow green
White, Purple
Flower Color Modifier
Bicolor
Bicolor
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
-
Light Green
Leaf Shape
Irregular
Ovate elongated
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Type of Soil
-
Clay, Loam, Sand
The pH of Soil
-
Acidic, Neutral
Soil Drainage
-
Well drained
Bloom Time
Spring
Early Spring, Spring, Winter, Late Winter, Indeterminate
Tolerances
Drought
Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
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, Neutral
Soil Type
-
Clay, 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
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
-
Single
Fragrant Bark/Stem
No
Yes
Foliage Texture
Medium
Medium
Attracts
Birds
Birds, Butterflies
Allergy
Pollen
Mild Allergen
Aesthetic Uses
Borders
Showy Purposes
Beauty Benefits
-
Brightens the skin complexion, Good for skin and hair
Environmental Uses
Air purification, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Air purification
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
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Subfamily
-
Aurantioideae
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: while Citron has beauty benefits as follows: .
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.