Brown edges on leaves

Question

What is causing brown edges on my Cordyline?

Answer 1

Browning tips on plant leaves is quite common and can be caused by a few issues.
Most are easily remedied.

Here are some articles for you.

http://mrec.ifas.ufl.edu/foliage/folnotes/cordylin.htm
https://www.gardeningknowhow.com/plant-problems/environmental/what-causes-brown-edges-on-leaves-of-plant.htm