Dracaena marginata, also known as dragon tree, is an attractive plant with green sword-like, red-edged leaves. Thanks to its tolerance for a wide range of temperatures, they are very popular as large potted plants for homes/offices. They should be planted in well-draining soil and watered regularly during their growing season. Though they can thrive in a variety of light conditions, they do best with indirect bright light. In addition to adding beauty to your home, they are also beneficial in removing harmful chemicals in your household air.
Like with many drought-tolerant plants, it's easy to over-water the dragon tree. To avoid drowning your plant, wait until the top half of the soil is dry before watering (this can often take three weeks or more). If the plant develops brown tips on its leaves, that's usually a sign of overwatering or that your water has too much salt/fluoride. If the plant has yellow leaves, it usually means it needs more water.