Jamie,
Just remember that *at least a wild
lilac* lives
out doors and can survive in the crappiest kinds of soil/dirt... and some
plants can be killed
with kindness...
And Miracle Soil is usually filled with a Nitrogen based ingredients... and can promote green lush growth on the top..
What you want to do for the
lilac bush is to
promote it's rooting abilities..
*under growth, not upwards growth*
So, I might, leave out the Miracle Grow and just do regular soil...
maybe if you feel the need to feed it or be extra good to it, some compost.. but about 25% to 75% soil, like the soil it is
growing from, her lawn area....