Life Span
Perennial
Annual and Perennial
Type
Tree
Grass
Origin
-
North America, United States, Western United States, Southwestern United States, Mexico
Types
Honey Locust
Bouteloua gracilis
Number of Varieties
1014
0
40000
👆🏻
Habitat
Woodland Garden Canopy
Open Plains, Prairies
USDA Hardiness Zone
5-83-9
0
99
👆🏻
AHS Heat Zone
9-3
9 - 5
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, 7, 8, 9, 10, 11, 14, 18, 19, 20, 21
Habit
Upright/Erect
Clump-Forming
Plant Size
Minimum Height
1,524.00 cm91.44 cm
0
3900
👆🏻
Minimum Width
1,066.80 cm91.44 cm
0
6350
👆🏻
Plant Color
Flower Color
Rose, Violet
Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Purple, Brown
-
Leaf Color in Spring
Red, Crimson, Bronze
Green, Blue Green
Leaf Color in Summer
Green, Blue Green
Light Green
Leaf Color in Fall
Yellow green
Purple, Blue Green, Tan
Leaf Color in Winter
-
-
Shape
Leaf Shape
Pinnate
Grass like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Average
Well drained
Bloom Time
Spring, Late Spring
Summer, Late Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Pollution, Drought, Salt, Soil Compaction
Pollution, Drought
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Needs a lot of water initially, occasional watering once established
Average Water Needs, Medium
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
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
-
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
Drought, Pollution, Salt, Soil Compaction
Drought, Pollution
Flowers
✔
✘
✔
✘
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Fine
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies
Butterflies, Flying insects
Allergy
Abdominal pain, Depression, Diarrhea, Digestive Problems, gastro-intestinal problems, Kidney Disease, Liver disease, Nausea, Vomiting, weakness
Anaphylaxis, Asthma, Hay fever, Pollen, Respiratory problems, Runny nose, Watery eyes
Uses
Aesthetic Uses
Showy Purposes
Ground Cover
Beauty Benefits
Good for skin
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree, soil stabilisation
Air purification, soil erosion prevension on hill slopes, Wildlife
Plant Benefits
Medicinal Uses
Antispasmodic, Antivinous, Cancer, Cholagogue, Diuretic, Emetic, Emmoiliant, Eye Problems, Febrifuge, Laxative, Purgative, Tonic
Cuts
Part of Plant Used
Flowers, Seeds, Wood
Seeds, Whole plant
Other Uses
Fibre, For making oil, Used as a dye, Used as essential oil, Used as fuel, Used for woodware
Used As Food
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees, Street Trees
Dried Flower/Everlasting, Feature Plant, Mixed Border, Rock Garden / Wall, Wildflower
Botanical Name
ROBINIA 'Purple Robe'
BOUTELOUA gracilis 'Blonde Ambition'
Common Name
Hybrid Black Locust, Purple Robe Locust
Blonde Ambition Blue Grama Grass, Blue Grama Grass
In Hindi
Black Locust Tree
Blue Grama Grass
In German
Schwarz Locust Tree
Blau Grama Grass
In French
Noir Arbre Locust
Boutelou gracieux
In Spanish
Negro del árbol de la langosta
Azul Grama Grass
In Greek
Μαύρο Locust Tree
Μπλε Grama Grass
In Portuguese
Árvore Locust Preto
Azul Grama Grama
In Polish
Robinii akacjowej Drzewo
Niebieski Grama Trawa
In Latin
Locusta arbor Niger
Blue Grama Grass
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Lilopsida
Order
Fabales
Cyperales
Family
Fabaceae
Poaceae
Genus
Robinia
Bouteloua
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Commelinids, Monocots
Tribe
Robinieae
-
Subfamily
Faboideae
-
Number of Species
2550
1
27800
👆🏻