Dracaena marginata is an attractive, stiff-leaved plant with colorful foliage that sometimes goes by the name dragon tree. Most of the time, though, it’s sold simply as “Dracaena marginata” or just “Dracaena.” These plants are perfect for a beginner gardener because they're very easy to grow indoors.
These are tough, drought-tolerant plants with aggressive root systems that make excellent houseplants because they are a little more forgiving than some of the other dracaena. It helps that they’re attractive and varied. They are sometimes grown as single-stemmed plants; other times grouped or even braided together in the same pot.
https://www.thespruce.com/grow-dracaena-marginata-indoors-1902749