when I moved I took a start of my oldest daughters lilac
bush with us.
It is still in a pot (all be in much larger pot) 13 years later. I take it to my front porch (faces east) and it is there from right before the end of the last frost date in the spring
..to right before the first freeze in the fall. I moved it to our garage for the winter & water sparingly. You could also treat them as house plants for a few years.