Life Span
Perennial
Perennial
Habitat
Woodland Garden Canopy
dry rocky watercourses
USDA Hardiness Zone
5-8
3-9
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
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
Habit
Upright/Erect
Upright/Erect
Flower Color
Rose, Violet
Blue Violet, Lavender, Purple, White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Purple, Brown
Green, Brown
Leaf Color in Spring
Red, Crimson, Bronze
Green, Sea Green
Leaf Color in Summer
Green, Blue Green
Green, Sea Green
Leaf Color in Fall
Yellow green
Green, Sea Green
Leaf Color in Winter
-
Light Green
Leaf Shape
Pinnate
Lanceolate to elliptical
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer
Sunlight
Full Sun
Full Sun, Partial Sun
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Average
Well drained
Bloom Time
Spring, Late Spring
Spring, Late Spring, Early Summer
Tolerances
Pollution, Drought, Salt, Soil Compaction
Drought
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Rhizome division
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
Clay, Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun
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
Pests and Diseases
Red blotch
Aphids, Bacterial leaf spot, Billbugs, Borers, Fungal leaf spots
Plant Tolerance
Drought, Pollution, Salt, Soil Compaction
Drought
Flower Petal Number
Single
Single
Foliage Texture
Medium
Coarse
Foliage Sheen
Matte
Matte
Attracts
Birds, Butterflies
Butterflies
Allergy
Abdominal pain, Depression, Diarrhea, Digestive Problems, gastro-intestinal problems, Kidney Disease, Liver disease, Nausea, Vomiting, weakness
Gastric disturbances, Skin irritation
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
Good for skin
-
Environmental Uses
Air purification, Shadow Tree, soil stabilisation
Air purification
Medicinal Uses
Antispasmodic, Antivinous, Cancer, Cholagogue, Diuretic, Emetic, Emmoiliant, Eye Problems, Febrifuge, Laxative, Purgative, Tonic
Juice of fresh root used for treatment of dropsy
Part of Plant Used
Flowers, Seeds, Wood
Root
Other Uses
Fibre, For making oil, Used as a dye, Used as essential oil, Used as fuel, Used for woodware
Making Perfumes, Used as a flavouring in food
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees, Street Trees
Cutflower, Feature Plant, Mixed Border
Botanical Name
ROBINIA 'Purple Robe'
Iris germanica
Common Name
Hybrid Black Locust, Purple Robe Locust
German Iris
In Hindi
Black Locust Tree
German Iris
In German
Schwarz Locust Tree
German Iris
In French
Noir Arbre Locust
German Iris
In Spanish
Negro del árbol de la langosta
German Iris
In Greek
Μαύρο Locust Tree
German Iris
In Portuguese
Árvore Locust Preto
German Iris
In Polish
Robinii akacjowej Drzewo
German Iris
In Latin
Locusta arbor Niger
German Iris
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Fabales
Asparagales
Family
Fabaceae
Iridaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Subfamily
Faboideae
Iridoideae
Importance of Black Locust and German Iris
Want to have the most appropriate plant for your garden? You might want to know the importance of Black Locust and German Iris. Basically, these two plants vary in many aspects. Compare Black Locust and German Iris 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 German Iris is Juice of fresh root used for treatment of dropsy. Black Locust has beauty benefits as follows: Good for skin while German Iris has beauty benefits as follows: Good for skin.
Compare Facts of Black Locust vs German Iris
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 German Iris 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 German Iris have Gastric disturbances and Skin irritation respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Black Locust has no showy fruits and German Iris has no showy fruits. Also Black Locust is flowering and German Iris is flowering. You can compare Black Locust and German Iris facts and facts of other plants too.