Life Span
Perennial
Annual and Perennial
Type
Tree
Flowering Plants, Shrubs
Origin
North America, United States, Northwestern United States, Alaska, California, Canada
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Types
-
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Habitat
Lowland evergreen rainforest
Forest edges, Hillside, Woods
USDA Hardiness Zone
4-7
2-11
Sunset Zone
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Pyramidal
Upright/Erect
Flower Color
Yellow, Red, Coral
Blue, Sky Blue, Indigo, Dark Blue
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown
Brown, Sandy Brown
Leaf Color in Spring
Green, Dark Green
Sea Green, Gray Green
Leaf Color in Summer
Dark Green
Sea Green, Gray Green
Leaf Color in Fall
Dark Green
Sea Green, Gray Green
Leaf Color in Winter
-
Light Green
Leaf Shape
Ovate
Oblovate
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Fast
Very Fast
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Average
Well drained
Bloom Time
Early Spring
Indeterminate
Tolerances
Maritime exposure, Salt water
Drought
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Layering, Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Requirements
Average Water Needs
Keep ground moist, Requires a lot of watering, Requires regular watering, Requires watering in the growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral, Alkaline
Slightly Acidic
Soil Type
Loam, Sand
Loamy
Soil Drainage Capacity
Average
Loamy
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen
Compost
Pests and Diseases
-
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Plant Tolerance
Maritime exposure, Salt water
Drought
Flowers
Insignificant
Showy
Flower Petal Number
-
Single
Foliage Texture
Medium
Medium
Foliage Sheen
Glossy
Matte
Attracts
Insects
Butterflies
Allergy
-
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Aesthetic Uses
-
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
Skin Problems
-
Environmental Uses
Air purification, Prevent Soil Erosion, Shadow Tree
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Medicinal Uses
Anodyne, Appetizer, Astringent
Fever, Kidney problems, Urinary tract problems
Part of Plant Used
Flowers, Inner Bark, Sap
Flowers, Root
Other Uses
Used as a dye, used for making charcoal, Used for making informal hedge
Can be made into a herbal tea, Decoration Purposes, Employed in herbal medicine, Showy Purposes, Used as Ornamental plant, Used for its medicinal properties
Used As Indoor Plant
No
Yes
Used As Outdoor Plant
Yes
Yes
Garden Design
Screening / Wind Break, Shade Trees
Container, Herb
Botanical Name
ALNUS rubra
CENTAUREA cyanus
Common Name
Oregon Alder, Red Alder
Batchelor's Buttons, Cornflower
In Hindi
red alder
Hydrangea
In German
rot-Erle
Hortensie
In French
aulne rouge
Hortensia
In Spanish
aliso rojo
Hortensia
In Greek
κόκκινη σκλήθρα
υδραγεία
In Portuguese
amieiro vermelho
Hortênsia
In Polish
czerwony olcha
Hortensja
In Latin
red alnus
Hibiscus
Phylum
Magnoliophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Family
Betulaceae
Asteraceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Importance of Red Alder and Cornflower
Want to have the most appropriate plant for your garden? You might want to know the importance of Red Alder and Cornflower. Basically, these two plants vary in many aspects. Compare Red Alder and Cornflower 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 Cornflower is Fever, Kidney problems and Urinary tract problems. Red Alder has beauty benefits as follows: Skin Problems while Cornflower has beauty benefits as follows: Skin Problems.
Compare Facts of Red Alder vs Cornflower
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 Cornflower 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 Cornflower have Chest tightness, Diarrhea, Dizziness, Nausea 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 Cornflower has no showy fruits. Also Red Alder is not flowering and Cornflower is not flowering . You can compare Red Alder and Cornflower facts and facts of other plants too.