I am getting 4-5 blooms the first of April in Oregon, which possess very minimal fragrance. Is there anything I can do to enhance that fragrance? What fertilizers would you recommend? I know ammonium sulfate is supposed to enhance blueberry size/flavor. Is there anything like that for lilacs?
Can Certain Nutrients Increase My Lilac’s Fragrance?
Certified GKH Gardening Expert
Nutrients can't change the fragrance that your Lilac emits, but certainly a healthy plant will produce more flowers and will not only look showy but more flowers will likely produce more fragrance then just a few flowers.
Here is a link with more information on Lilac care.