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As an indoor potted plant, branches can become green and thin if they don't get enough sun. If they get plenty of sun, they become strong, thick stems of bold purple color. The flowers are sweet, dainty pink hearts (3 petals) held in cups of the purple leaves. The flower cups can become quite full and weigh down the stems. Although it is tempting to let it grow and cascade down from the pot, it is best to keep the plant bushy to promote flowering, otherwise, it will get long and leggy.
It is easy to root the clippings. That is how I got mine, I raided my boss's trash can when she clipped her plant and brought home a couple of branches.
I love this plant!