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Robinia pseudoacacia · Fabaceae

Black Locust

⚠️ Not safe for petsDeciduous life cycle, losing leaves in winter.150 to 300 cm
Full sunModerate wateringMediumWithstands light frosts down to minus 5 degrees Celsius.

Description & origin

The black locust is a fast-growing tree known for its fragrant white flowers. It is often used in gardens for its nitrogen-fixing ability. Its leaves are compound and deciduous.

Size

Can reach up to 3 meters in domestic cultivation.

Foliage

Deciduous foliage, losing leaves in winter.

Flowering

Blooms in spring with clusters of fragrant white flowers.

Detailed care

Light

Prefers full sun for optimal growth.

Soil

Tolerates a variety of soils but prefers well-drained soil.

Watering

Moderate watering, allowing the soil to dry slightly between waterings.

Temperature

Handles cold temperatures well but prefers temperate climates.

Fertilising

Fertilize in spring with a balanced fertilizer.

Repotting

Transplant in spring or autumn when the plant is dormant.

Pruning

Prune in late winter to maintain shape and remove dead branches.

Propagation

Easily propagated by seeds or cuttings.

Common problems

Aphids

Can infest leaves and cause damage.

Root rot

Occurs in poorly drained soils.

Bark canker

Can affect the health of the tree.

Uses & curiosities

In the garden

  • Hedge
  • Shade tree
  • Nitrogen fixation

Other uses

Durable wood for construction

Did you know…

The wood of the black locust is extremely durable and used in furniture and post construction.