Life Span
Perennial
Perennial
Origin
-
North America, United States, Northwestern United States, Alaska, California, Canada
Habitat
Woodland Garden Canopy
Lowland evergreen rainforest
USDA Hardiness Zone
5-8
4-7
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Upright/Erect
Pyramidal
Flower Color
Rose, Violet
Yellow, Red, Coral
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Purple, Brown
Brown
Leaf Color in Spring
Red, Crimson, Bronze
Green, Dark Green
Leaf Color in Summer
Green, Blue Green
Dark Green
Leaf Color in Fall
Yellow green
Dark Green
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Sunlight
Full Sun
Full Sun, Partial Sun, Partial shade
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Average
Average
Bloom Time
Spring, Late Spring
Early Spring
Tolerances
Pollution, Drought, Salt, Soil Compaction
Maritime exposure, Salt water
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Layering, Seedlings
Plant Maintenance
Medium
Medium
Watering Requirements
Average Water Needs, Needs a lot of water initially, occasional watering once established
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
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Average
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
Pruning
Cut limbs, Prune in winter, Prune up lowest branches, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen
All-Purpose Liquid Fertilizer, Nitrogen
Pests and Diseases
Red blotch
-
Plant Tolerance
Drought, Pollution, Salt, Soil Compaction
Maritime exposure, Salt water
Flowers
Yes
Insignificant
Flower Petal Number
Single
-
Foliage Texture
Medium
Medium
Foliage Sheen
Matte
Glossy
Attracts
Birds, Butterflies
Insects
Allergy
Abdominal pain, Depression, Diarrhea, Digestive Problems, gastro-intestinal problems, Kidney Disease, Liver disease, Nausea, Vomiting, weakness
-
Aesthetic Uses
Showy Purposes
-
Beauty Benefits
Good for skin
Skin Problems
Environmental Uses
Air purification, Shadow Tree, soil stabilisation
Air purification, Prevent Soil Erosion, Shadow Tree
Medicinal Uses
Antispasmodic, Antivinous, Cancer, Cholagogue, Diuretic, Emetic, Emmoiliant, Eye Problems, Febrifuge, Laxative, Purgative, Tonic
Anodyne, Appetizer, Astringent
Part of Plant Used
Flowers, Seeds, Wood
Flowers, Inner Bark, Sap
Other Uses
Fibre, For making oil, Used as a dye, Used as essential oil, Used as fuel, Used for woodware
Used as a dye, used for making charcoal, Used for making informal hedge
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees, Street Trees
Screening / Wind Break, Shade Trees
Botanical Name
ROBINIA 'Purple Robe'
ALNUS rubra
Common Name
Hybrid Black Locust, Purple Robe Locust
Oregon Alder, Red Alder
In Hindi
Black Locust Tree
red alder
In German
Schwarz Locust Tree
rot-Erle
In French
Noir Arbre Locust
aulne rouge
In Spanish
Negro del árbol de la langosta
aliso rojo
In Greek
Μαύρο Locust Tree
κόκκινη σκλήθρα
In Portuguese
Árvore Locust Preto
amieiro vermelho
In Polish
Robinii akacjowej Drzewo
czerwony olcha
In Latin
Locusta arbor Niger
red alnus
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Fabaceae
Betulaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Importance of Black Locust and Red Alder
Want to have the most appropriate plant for your garden? You might want to know the importance of Black Locust and Red Alder. Basically, these two plants vary in many aspects. Compare Black Locust and Red Alder 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 Black Locust is Antispasmodic, Antivinous, Cancer, Cholagogue, Diuretic, Emetic, Emmoiliant, Eye Problems, Febrifuge, Laxative, Purgative and Tonic whereas of Red Alder is Anodyne, Appetizer and Astringent. Black Locust has beauty benefits as follows: Good for skin while Red Alder has beauty benefits as follows: Good for skin.
Compare Facts of Black Locust vs Red Alder
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 Black Locust vs Red Alder 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 Black Locust are Abdominal pain, Depression, Diarrhea, Digestive Problems, gastro-intestinal problems, Kidney Disease, Liver disease, Nausea, Vomiting and weakness whereas of Red Alder have respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Black Locust has no showy fruits and Red Alder has showy fruits. Also Black Locust is flowering and Red Alder is not flowering . You can compare Black Locust and Red Alder facts and facts of other plants too.