Roses
Q.

Can I plant a rose near a laburnum tree ?

Zone West Yorkshire BD17 6LE | joannahighfold added on October 8, 2018 | Answered

I have a rose which has been sent from France and I would like to plant it soon near a laburnum tree. Is the tree poisonous enough to effect the rose ?

A.
A.Answers to this queston: Add Answer
drtreelove
Certified GKH Gardening Expert
Answered on October 18, 2018

All parts of the Laburnum tree contain cytosine, and this tree has a reputation of being toxic for humans, but I could not fine any clear reference to allelopathic properties (phyto-chemical suppression of underlying plant growth).
It would be safest to keep some distance. In any case, it may be unwise to plant a rose too close to any tree due to the shading. Roses do best in full sun.

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