If you already know how to set up a fish tank, then you should know how to cycle a tank properly. Plants only add additional benefit to any fish tank. To keep the plants alive choose the proper lighting for a 5.5 gallon and I suggest starting with low maintenance plants. Also, do some research on the substrate and fertilizers. You probably should start low tech and gain some experience before entertaining the idea of a high-tech planted tank. Good Luck!
recognize the OODA loop within everything you do