Is it a good idea to plant shrubs near trees? You might wonder if this would be a good or bad idea. For the most part, shrubs are going to be much shorter. Trees tend to be much taller, regardless of the type that they are. One reason that people may not recommend this is because the amount of light that a shrub may need will be blocked, especially during the summer and fall. This is when the trees will have leaves that are the thickest, and it could be detrimental to the shrubs. If you still want to do this, here are some tips on planting trees near shrubs that will not compromise the health of either type of flora.