Robinia pseudoacacia (Umbrella Black Locust)
Black locust is a fast growing but weak wooded tree growing almost in every location. Leaves are deciduous, compound. Early summer long cluster of fragrant flower appears which is edible.Ths flower is one of the largest pollen source for honey bees. Black locust can grow on any site, can tolerate drought, frost heat. In some areas it has invasive potential. Many varieties are available in the market for landscape use such as " Umbellata" which has umbrella shape.
- Landscape Information
- Botanical Description
- Horticulture Management
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- By Brosen (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) or CC BY 2.5 (http://creativecommons.org/licenses/by/2.5)], via Wikimedia Commons
- By Jean-Pol GRANDMONT (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons
- By Fontema (Own work) [Public domain], via Wikimedia Commons
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French Name: Robinier
Pronunciation: roe-BIN-nee-uh soo-doe-uh-KAY-shuh
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Plant type: Tree
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Origin: North America
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Heat Zones: 1 to 9
Hardiness Zones: 4 to 8
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Uses: Specimen, Shade, Street
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Size/Shape
Growth Rate: Fast
Tree Shape: Round, Weeping
Canopy Symmetry: Symmetrical
Canopy Density: Dense
Canopy Texture: Fine
Height at Maturity: 5 to 8 m
Spread at Maturity: 5 to 8 meters
- By Doronenko (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons
- By Rasbak (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons
- By No machine-readable author provided. Bogdan assumed (based on copyright claims). [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons
- By Brosen (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) or CC BY 2.5 (http://creativecommons.org/licenses/by/2.5)], via Wikimedia Commons
- By Jean-Pol GRANDMONT (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons
- By Fontema (Own work) [Public domain], via Wikimedia Commons
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Foliage
Leaf Arrangement : Alternate
Leaf Venation: Pinnate
Leaf Persistance: Deciduous
Leaf Type: Odd Pinnately compund
Leaf Blade: 20 - 30
Leaf Shape: Obovate
Leaf Margins: Entire
Leaf Texture: Fine
Leaf Scent: No Fragance
Color(growing season): Green
Color(changing season): Green, Yellow
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Flower
Flower Size Range: 1.5 - 3
Flower Type: Solitary
Flower Scent: No Fragance
Seasons: Spring
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Trunk
Trunk has Crownshaft: No
Trunk Susceptibility to Breakage: Suspected to breakage
Number of Trunks: Single Trunk
Trunk esthetic Values: Fissured
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Fruit
Fruit Type: Legume
Fruit Size Range: 7 - 10
Fruit Color: Red, Black
Seasons: Spring
- By Doronenko (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons
- By Rasbak (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons
- By No machine-readable author provided. Bogdan assumed (based on copyright claims). [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons
- By Brosen (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html), CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/) or CC BY 2.5 (http://creativecommons.org/licenses/by/2.5)], via Wikimedia Commons
- By Jean-Pol GRANDMONT (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0) or CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons
- By Fontema (Own work) [Public domain], via Wikimedia Commons
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Tolerance
Salt Tolerance: Good
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Requirements
Soil Requirements: Clay, Loam, Sand
Soil Ph Requirements: Acidic, Neutral, Alkaline
Water Requirements: Moderate
Light Requirements: Full, Part
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Management
Toxicity: No
Susceptibility to Pests and Diseases: Yes
Pruning Requirements: Needed, to develop a strong structure
Fruit/ Leaves/ Flowers litter: No
Surface Rooting: Yes
Life Span: 25-50 years
Diseases: Powdery Mildew, Leaf Spots, Canker
Edible Parts: Flower
Pests: Scales, Leaf Miner, Borers
Plant Propagation: Seed, Cutting