if it its leafs are turning brown then that probably means that it is sick or is not getting enough light.
heterzygous with brown leaves
The color of the dominant trait will be expressed by that plant (Brown).
your not watering it?
For some plants, the brown leaves slow the growing of the plant since brown leaves are basically dead leaves, but for most plants, people just cut them off because it looks more presentable that way. Usually they can live and grow with the brown leaves still there.
Because it is Autumn and the plant is getting ready to shed it leaves.
The leaves may be dying, which is natural. If the leaves are exposed to extreme sunlight, it may be burning. If this is so, allow the plant less extreme light. It depends upon the species; oreophila goes into dormancy relatively early.
If pony palm leaves are turning brown from the bottom up, your plant is likely lacking essential nutrients. You need to fertilize it to correct the problem, though leaves that are already brown are unlikely to ever turn green again. New growth will look normal.
yellow/brown
Yellow leaves usually indicates overwatering. Brown leaves indicate that the plant is not receiving enough water. The combination indicates that either your mint plant is confused or you are not consistently and/or correctly watering it, according to its need.
If a Boston fern turns brown and I cut the brown leaves down there are few green leaves will it come back
Gardeners and botanists study leaves. A gardener looks for yellow or brown leaves to see if the plant needs water or minerals. Botanists often study the leaves to identify the plant.
Chinese Hibiscus leaves should be a rich dark green. If the leaves are turning yellow, the plant my be dying. The plant could be saved by hydrating the plant, and giving the plant fertilizer.