Old-fashioned lilacs (Syring vulgaris) may indeed take up to five years to bloom. However, the smaller types, such as Bloomerang or Meyer lilac usually will bloom within a couple of years. Of course, it also depends on how mature the plant is that you start with. A liner or whip (unbranched twig) will take an extra year or two to reach blooming size versus a well-branched container-grown shrub.

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For Lilac Lovers

• Keep Lilacs From Wilting in a Vase
• The Best Lilacs for Fragrance and Color
• 15 Classic Flower Arrangements