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Robinia pseudoacacia

Black Locust

Plant photo of: Robinia pseudoacacia
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Information by: Jerry Sortomme - Editor        Photographer: Connon Nursery

 

Description

This very fast-growing deciduous tree will grow 40-75' tall and 30-60' wide. It has blue-green or light green leaves with fragrant white flowers in the spring. Thorny branches, hard wood and heavy sucker production make the Black Locust a challenging maintenance project.

 

Plant Type

Tree

Height Range

25-40'

Flower Color

White

Flower Season

Spring

Leaf Color

Blue Green, Light Green

Bark Color

n/a

Fruit Color

n/a

Fruit Season

n/a

Sun

Full

Water

Very Low, Low, Medium

Growth Rate

Fast

Soil Type

Sandy, Clay, Loam, Rocky, Unparticular

Soil Condition

Average, Poor, Well-drained, Dry

Soil pH

Neutral

Adverse Factors

Invasive, Thorns/Spines

Design Styles

Ranch, Spanish, Wild Garden

Accenting Features

Showy Flowers

Seasonal Interest

Spring

Location Uses

Background, Park, Roadside, Street Tree

Special Uses

Wind Break, Shade Tree

Attracts Wildlife

n/a

Water Saving Tip:

In shrub areas, convert from spray sprinklers to bubbler or drip systems that apply water directly to roots.

Occasionally check the soil's moisture level around shrubs before and after watering to determine if watering times are appropriate.