In the fall, i transplant some annuals into flowerpots. Begonias, polka-dot plant, and geraniums perform well in a sunny window, but by January, the begonias are tall and leggy and looking a bit ragged. So i cut them back, all the way back to the base of each stem, and put the cuttings in a glass of water, hoping they will root. Meanwhile, i have a "bouquet" of pink begonias on the windowsill in the kitchen to cheer me up while i'm washing dishes.
The potted begonia begins to look great a couple of weeks later with compact, shiny green foliage and lots of fresh pink flowers.
More is not always better. More of the begonia plant looks unruly. Sometimes we have to renounce desire, prune our cravings back in order that we ourselves become lush and blooming.