Life Span
Perennial
Perennial
Origin
North America, United States, Northwestern United States, Alaska, California, Canada
Eastern Africa, Southern Asia, Southeastern Asia, Melanesia, Micronesia, Polynesia, Australia
Habitat
Lowland evergreen rainforest
Saline Soils, Sandy areas
USDA Hardiness Zone
4-7
10-15
Sunset Zone
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
H1, H2
Habit
Pyramidal
Oval or Rounded
Flower Color
Yellow, Red, Coral
White, Yellow, Gold, Orange Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown
Light Green, Chocolate
Leaf Color in Spring
Green, Dark Green
Green
Leaf Color in Summer
Dark Green
Green
Leaf Color in Fall
Dark Green
Green
Leaf Color in Winter
-
Green
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Average
Average
Bloom Time
Early Spring
Indeterminate
Tolerances
Maritime exposure, Salt water
Drought, Salt
Where to Plant?
Ground
Ground
How to Plant?
Layering, Seedlings
Seedlings, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Requirements
Average Water Needs
Average Water Needs
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Average
Average
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Pinch or prune as they grow to promote branching and bushiness, Remove damaged leaves
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen
All-Purpose Liquid Fertilizer
Pests and Diseases
-
Root rot, Snails
Plant Tolerance
Maritime exposure, Salt water
Drought and Salt
Flowers
Insignificant
Showy
Flower Petal Number
-
Single
Foliage Texture
Medium
Coarse
Foliage Sheen
Glossy
Glossy
Attracts
Insects
Birds, Butterflies
Allergy
-
Dizziness, Throat itching, Vomiting
Aesthetic Uses
-
Cottage Garden
Beauty Benefits
Skin Problems
Making cosmetics, used as a dye
Environmental Uses
Air purification, Prevent Soil Erosion, Shadow Tree
Absorbs greenhouse gases, No fertilizer, pesticides, or herbicides needed, Shadow Tree
Medicinal Uses
Anodyne, Appetizer, Astringent
Acne, Aging, Hair Loss
Part of Plant Used
Flowers, Inner Bark, Sap
Flowers, Fruits, Leaves
Other Uses
Used as a dye, used for making charcoal, Used for making informal hedge
Making Shampoo, Showy Purposes, Used as Biofuel, Used as Ornamental plant
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Screening / Wind Break, Shade Trees
Edible, Shade Trees, Street Trees, Tropical
Botanical Name
ALNUS rubra
CORDIA subcordata
Common Name
Oregon Alder, Red Alder
Beach Cordia, Island Walnut, Kou, Sea Trumpet
In Hindi
red alder
Cordia subcordata
In German
rot-Erle
Cordia subcordata
In French
aulne rouge
Cordia subcordata
In Spanish
aliso rojo
Cordia subcordata
In Greek
κόκκινη σκλήθρα
Cordia subcordata
In Portuguese
amieiro vermelho
Cordia subcordata
In Polish
czerwony olcha
Cordia subcordata
In Latin
red alnus
Cordia subcordata
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Betulaceae
Boraginaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Importance of Red Alder and Kou
Want to have the most appropriate plant for your garden? You might want to know the importance of Red Alder and Kou. Basically, these two plants vary in many aspects. Compare Red Alder and Kou 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 Red Alder is Anodyne, Appetizer and Astringent whereas of Kou is Acne, Aging and Hair Loss. Red Alder has beauty benefits as follows: Skin Problems while Kou has beauty benefits as follows: Skin Problems.
Compare Facts of Red Alder vs Kou
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 Red Alder vs Kou 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 Red Alder are whereas of Kou have Dizziness, Throat itching and Vomiting respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Red Alder has showy fruits and Kou has no showy fruits. Also Red Alder is not flowering and Kou is not flowering . You can compare Red Alder and Kou facts and facts of other plants too.