Plants can be propagated by a number of methods. Growers can let a plant go to seed, collect the seeds, and then start the cycle over again (seegermination). Another method is to take stem cuttings, which is also known as cloning (because you are creating an exact copy of the parent plant).
Although this process won’t work with all plants, it is a highly effective technique. Simply cut off a side shoot or the top of the main shoot just below a growth node. Make sure that there are at least two growth nodes above the cut. Remove any of the lower leaves near the base of the new plant. This new cutting can then be rooted by placing it in water or in a propagation medium (Perlite works well) that is kept moist. The use of some rooting hormone can help your chances of success.