Pruning A Twisty Baby - Knowledgebase Question

North Manchester, IN
Question by ddke
September 23, 2004
I love my twisty baby but it is getting big. How can it be pruned? Do you cut it all the way back to the base or cut the limbs? I want to make sure it retains its unique contorted shape. Thanks!

A comment from traceyg1
July 10, 2018
I have 2..each fall I have cut them back and removed the bulk of the branches...and each spring they start regrowth and return to their original size...I have them in large pots on my patio...

Answer from NGA
September 23, 2004


Robinia pseudoacacia 'Twisty Baby' is a black locust, popular because of its twisted branches and trunk. Unfortunately, locust trees do not take well to pruning. Established trees are best left unpruned; large cuts rarely heal well and are prone to rot. After pruning, the tree may respond with a profusion of vigorous, but structurally weak vertical "water shoots".

If you'd still like to try pruning your 'Twisty Baby', wait until mid-winter when sap flow is at its lowest; cut the branches back by no more than one-third; then remove any dead, diseased, or misplaced branches.

If your timing is right and the cuts are small, your Robina should recover. If water sprouts (upright slender growth) appears, cut them off as soon as possible.

Best wishes with your 'Twisty Baby'.

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