Answer: You can cut blooms for bouquets, cutting longer stems than usual, as part of the process. After bloom, trim out crowded, dead or weak branches, and each year, do maintenance pruning (1/4-1/3 of the oldest wood each year). Use your judgement, because your dwarf plants may require less pruning. I recommend fertilizing your lilac each spring with an inch of compost to keep the shrubs in shape.
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