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Robinia pseudoacacia
Robinia pseudoacacia
Robinia pseudoacacia
Robinia pseudoacacia

Robinia pseudoacacia

TAXONOMY

FamilyFabaceae
GenusRobinia
Zone4

ABOUT

Robinia pseudoacacia, commonly known as black locust, is a deciduous tree or shrub native to the southeastern United States. It belongs to the Fabaceae family and is known for its fragrant white flowers and thorny branches. The plant is hardy and can tolerate a range of soil conditions, making it a popular choice for erosion control and as an ornamental tree. It has a dormancy period during the winter months.

ALSO KNOWN AS

Black Locust
Pseudacacia Vulgaris
Pseudo-Acacia Vulgaris
Aeschynomene pseudoacacia
Robinia acacia
Robinia amorphifolia
Robinia angulata
Robinia aurea
Robinia bessoniana
Robinia bullata
Robinia camusetii
Robinia coluteoides
Robinia cornigera
Robinia crispa
Robinia cylindrica
Robinia decaisneana
Robinia dissecta
Robinia echinata
Robinia edwardsiifolia
Robinia fastigiata
Robinia fragilis
Robinia inermis
Robinia jaspidea
Robinia latisiliqua
Robinia linearis
Robinia ludoviciana
Robinia monophyllus
Robinia patula
Robinia pendula
Robinia pendulina
Robinia pinnata
Robinia pringlei
Robinia procera
Robinia pseudacacia
Robinia pseudoacacia f. oswaldiae
Robinia pseudoacacia var. crispa
Robinia pseudoacacia var. inermis
Robinia pseudoacacia var. pseudoacacia
Robinia pseudoacacia var. rectissima
Robinia pyramidalis
Robinia spectabilis
Robinia stricta
Robinia tortuosa
Robinia undulata
Robinia uterhartii

OVERVIEW

WaterDry
SoilLoamy
LightDirect Bright (6 Hours)
Temperature20° C
Humidity50%
Dormancy3 Months
pH6.5
Pressure1,013 mbar

DETAILS

Care Instructions
Black locust prefers full sun and moderate temperatures. It is relatively drought-tolerant once established and does not require frequent watering. The plant thrives in temperate climates and can handle a range of humidity levels. Regular pruning is recommended to maintain its shape and remove any dead or damaged branches.
Soil
Robinia pseudoacacia prefers well-draining loamy soil but can tolerate a variety of soil types, including sandy and clay soils. It is important to ensure good drainage to prevent root rot. The plant can thrive in nutrient-poor soils but benefits from moderate nutrient concentration.
Fertilizer
A balanced fertilizer with an N-P-K ratio of 10-10-10 can be applied in the spring to support growth. Fertilizing once a year is generally sufficient for this hardy plant.
Repotting
If grown in a container, repotting should be done every 2-3 years to refresh the soil and provide more space for root growth. Choose a pot that is slightly larger than the current one and ensure it has good drainage.
Propagation
Black locust can be propagated through seeds, cuttings, or suckers. Seeds should be scarified before planting to improve germination rates. Cuttings can be taken in late spring or early summer and should be planted in a well-draining soil mix.
Pruning
Pruning should be done in late winter or early spring before new growth begins. Remove any dead, damaged, or crossing branches to improve air circulation and maintain the tree's shape. Regular pruning helps prevent the plant from becoming too leggy.
Toxicity
Robinia pseudoacacia is toxic to both humans and pets. All parts of the plant, especially the seeds and bark, contain toxic compounds that can cause nausea, vomiting, and other symptoms if ingested. It is important to keep this plant out of reach of children and animals.
Additional
Black locust is known for its rapid growth and ability to fix nitrogen in the soil, which can improve soil fertility. However, it can also become invasive in some areas, so it is important to monitor its spread and manage it appropriately.
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How To Grow Robinia pseudoacacia | EarthOne