Do You Deadhead Lilacs

But with lilacs, the only time deadheading seems to help them bloom better is during the first few years of growth. New lilac plants should begin blooming within 2 to 5 years. While the plants are young, deadheading the spent flowers helps to direct the plant’s energy into setting more buds.

Do you cut off dead lilac blooms?

Removing the dead flowers from your lilac bush will encourage more blooms the following year. The important thing when trimming off your flowers is that you simply cut off the spent flowers—don’t worry about any surrounding stems. … To deadhead lilacs, simply snip the dead flower, leaving the stem and leaves in place.

Should I cut off dead lilac branches?

Deadheading faded flowers directs the plant’s energy into new growth. Removing stems. Remove diseased, misshapen, and unproductive stems to clear the way for new, healthy stems. Old stems become less and less productive and, if not grafted, should be cut back to the ground.