Answer: So many shrubs are spring bloomers--azaleas, rhododendrons, quince--and it is a challenge to find a summer-long bloomer. Sweet pepperbush is one--its fragrant white flowers bloom mid-summer. It grows to a height of 4 to 5 feet, and is quite hardy and carefree, though it needs a moist soil. Rugosa rose it a hardy shrub rose, growing to a height of 5 or 6 feet. It, too, is quite carefree. Others to consider are Japanese beauty-berry, dwarf bush honeysuckle, hydrangea arborescens (hills-of-snow), French hydrangea.
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