I have a plum tree that produces small plums, but also suckers all through my lawn and under my patio.
How Can I Stop a Tree From Suckering
Certified GKH Gardening Expert
With some trees, you cannot completely stop suckering. But, all trees will sucker more if they are under stress. Take a look at the plum tree and see what some possible causes of stress are, such as:
Is it getting enough water?
Is it getting enough nutrients?
Is there signs of pests or disease?
All of these things are common stressors. If you can find out what is stressing the tree, you will be able to reduce the suckers.