There are a few possible reasons why your plant has brown tips on its leaves. It could be due to too much sun exposure, not enough water, or a nutrient deficiency. If the leaves are only lightly browned, it's probably due to sun exposure and can be fixed by moving the plant to a shadier spot. If the leaves are severely browned or wilted, it's probably due to lack of watering - make sure to give your plant a good drink every week or so.