The dragon tree plant is usually fertilized twice throughout the year with controlled fertilizer. For container grown plants, water regularly to keep the soil moist. Dracaena Marginata Plant - Watering Pruning Propagation - Plantopedia Sitting on a north facing window ledge, close to an east / west facing window or some distance away from a south facing one are all good locations. Dragon tree plant care outdoors . To organize care for dracaena draco, it should be borne in mind that drafts and cold are the enemies of the plant. Being evergreen, drought tolerant and able to live for hundreds of years it is a popular choice of. The plant prefers full sunlight or partial shade when planted outside. Indoors, the dragon tree can reach up to eight feet tall. Dracaena draco, the dragon tree is a wonderful specimen tree that is hugely popular with landscapers because of its naturally strong architectural features. If anyone asks me for advice on choosing a houseplant, i tend to poi...