Can you plant a lilac bush near a vegetable garden? Or will it make everything taste like lilac?
Certified GKH Gardening Expert
The lilac bush won't transfer its taste to the vegetables, so there's no problem there. However, a lilac planted too close to the vegetable garden will compete with the vegetables for water and nutrients, and the leaves might shade the garden, depending on where exactly it is placed.
A shrub's roots will generally extend out one and a half times the width of the shrub at maturity, so it's best to place it at least that far away.