Pinching out the growing tips and removing flowers will encourage bushy growth and more of those colorful leaves. Coleus can grow from 8 to 18 inches tall depending on the variety.
When fall comes, you can dig up and pot these beauties to keep them in the house or greenhouse during the winter. In the spring, you can pinch off tip growth and make cuttings from them. I start my cuttings by putting them in a glass of water. I change off the water every other day to keep the water fresh. They root very quickly. I then pot them up and let them grow till they are ready to go to the garden. Make sure that you acclimate your plants to the outdoors in the spring for at least a week before moving them to full sun. Coleus are also easy to grow from seed.
If you want some great color for the garden, plant coleus!