You can prune off the yellowing fronds but leave the green ones alone - while they are still green they are providing nutrients to the roots of the plant. In general, you can safely prune off the lowest fronds - look at the plant and imagine the face of a clock: you can prune off anything lower than 3 o'clock and 9 o'clock. Best wishes with your landscape.
You must be signed in before you can post questions or answers. Click here to join!
