Experts and BHG readers answer.
When do I transplant a lilac?
Hi, Well first, a lilac can take a lot of work to move, but if you have muscle power you should be able to get the job done. Second, the best time to do t his is in late winter/early spring, while the plant is still dormant. If you move it now, you could easily kill it. If I were you, I'd probably trim it back now since this is the best time to prune lilacs and then wait till early spring for the big dig.