New the the forum and just need one solid concrete answer... I have 2 lilac bushes, approximately 3ft from one another, in a southern exposed area, in soil that is poor and somewhat sandy. The lilacs are 5 years old and have not bloomed nor grown, for that matter, in the three years that they have been in my care. I did not plant them but I know they are not grafted plants. I am able to transplant if that is what advice I am given - but please tell me the best exposure of where to plant! I can't understand - my parents have 2 trees - they're massive and bloom every year and they don't do a thing to them. What am I missing??