Coleus is a hardy annual that is grown for its colorful leaves. It does have flowers but they are fairly indiscriminate and I normally just cut them off when they appear, since this makes my plant get bushier.
The plant comes in so many varieties now. They take easily from cuttings dipped in rooting power, so I will often buy three or four and pretty much strip them down into dozens of cuttings. A few weeks later, all of my garden beds are growing the beauties.
Anyone who is interested in organic gardening has most likely heard of heirloom seeds. With all the talk of GMO seeds, heirloom seeds (those that are passed down from one generation to the next) are very much in demand by gardeners who want a "true" vegetable.
My great grandmother was an avid gardener. I can barely remember her, but I do remember her garden. She was also a seed saver and she passed her seeds to her daughter who did the same.