once again i am looking for anwers to my green cordyline aust going brown it as had nitogen feed plus miracle growevery two to three weeks it is green at the top and is flowering thanks stephen

its natural for cordalines to have old leaves at the bottem going brown to be replaced bye the new ones you mention . also the 2 harsh winters weve had havnt helped .

If its the bottom leaves, Noseypotter is right - the bottom leaves do change colour, go brown and eventually fall off on their own if you don't pull or cut them off. But I'm confused - in your previous question, you said the bottom leaves were going green, which would imply you have a red/purplish brown Cordyline.