Late-Summer Color for the Garden

Late summer can mean dog days in the garden as the festive color palette of spring and early summer slowly fades to a dull, droopy green. To lift your garden out of the doldrums, consider some of these saving graces.

Alternanthera 'Purple Knight'. Stunning, lush, easy, vigorous — all describe this foliage plant that puts on a show of rich dark-purple foliage from late spring to frost. It's an annual that's very easy to grow and tough enough to handle rough weather and the summers of subtropical climates. The plant can reach 1 1/2 to almost 3 feet high and almost as wide.

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