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How to Propagate Robinia Pseudoacacia Cuttings

Robinia Pseudoacacia, also known as the Black Locust, is a fast-growing tree that spreads rapidly through root suckers. Entire groves of Robinia Pseudoacacia can sprout in a very short time, each tree connected to the next via its roots. In many places Robinia Pseudoacacia is considered almost a weed. For those interested in propagating trees that are genetically identical to a parent tree, propagating by seeds is not an option due to the tremendous genetic variables that can occur in seeds. In order to raise trees that are genetically identical to a parent tree, cuttings are the only viable method, although cuttings of the Robinia Pseudoacacia can be difficult to root.

Cut small new-growth branches with a leaf node near the cut. Branches should be at least 8 inches long, but can be longer.

  • Robinia Pseudoacacia, also known as the Black Locust, is a fast-growing tree that spreads rapidly through root suckers.
  • In order to raise trees that are genetically identical to a parent tree, cuttings are the only viable method, although cuttings of the Robinia Pseudoacacia can be difficult to root.

Dip the cut end into rooting hormone. Allow the powder to stick to the cutting.

Plant the cutting in a mixture of 50% sand and 50% vermiculite. Water well. Keep cuttings at a temperature of 70 to 75 degrees F.

Mist the cuttings frequently with a spray bottle and keep the soil damp.

Be patient. Rooting can take 3 months or more.

  • Dip the cut end into rooting hormone.
  • Allow the powder to stick to the cutting.

Tip

Root several cuttings at the same time since many cuttings fail to root.

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