Lilacs are hardy spring flowering shrubs and trees, producing masses of romantic ... It is best to err on the side of caution when feeding lilac shrubs, fertilizing only once per year.

Lilacs can be very long-lived, and over time mature shrubs grow as high as small trees ... your lilac will help deter weeds and preserve nutrients and moisture. Though a moderate use of fertilizer ...

Why is my lilac tree so temperamental ... the experts about my tree not blossoming every year but have gotten no clear answers. Before you wonder about fertilizer and watering, never mind.