Spiraea latifolia (syn. Spiraea alba var. latifolia) – This is an underutilized Connecticut native happy to colonize in moist, fertile soil. Meadowsweet flowers for a long season mid to late summer with white terminal clusters, sometimes branched, in white or white just touched with pink. Generally a very nice butter yellow fall foliage color sometimes infused with a bit of orange extends the seasons of interest in autumn. The medium brown stems exfoliate on older stems. The flowers turn brown by late season and often hang on the ends of branches into winter. Great in the wild garden or at wood's edge it will want to colonize an area.