if its just those two leaves.. i would just cut them off with scissors and be done with them.. out of sight.. out of mind ..

i cant really see any other such in the pic of the whole plant..

and keep in mind.. the insult could have happened a month or two ago.. and its just showing.. so i might be leery of fixing a problem that might not be currently happening ...

in other words ... dont fix what might not be broken ... until we figure out of its broken ...

ken

Im a plant tech. Dracenas hate the flouride in tap water and will get orange spots. Give them driinking water if you can. They like the dry side so let them dry out between waterings. If you cut a leaf notice what it does after. Does it form a thin brown line or does the leaf continue to yellow after it has been cut. If it yellows tht means that you are overwatering it. Give it some light fan action, open windows to increase respiration.

Also dont be afraid to top the plant to get it to form new branches. When the new branches fill in start taking the old leaves off. In fact any unsightly leaf should be pulled off. THey come of easily.

Hi, thank you both for commenting. I’ve done some research into ’Janet Craig’ dracaenas (this looks to be the most similar to mine). As you’ve said above about fluoride, I have now bought some bottled water to use. I’ve also read that fertiliser can cause burning to the leaves. A few months ago I used a houseplant fertiliser a couple of times - i’m thinking this could have caused a salt build up which is now causing some leaf damage.

The photo of the whole plant on my original post is now old, there is now quite a few leaves that are affected - either yellow and brown or mostly brown. New photos below.

The plant is growing as there is new growth.

- would it be beneficial to ’flush’ the plant through, thoroughly with bottled water to try to remove any of the fertiliser that might have built up? How do I go about doing this without damaging further (from over watering etc)

- If i cut damaged leaves off near to the stem, would it grow new ones from there?

Thank you for your help. It is much appreciated as this is a treasured plant so I really want to make sure it thrives!

Check out this video https://www.youtube.com/watch?v=mDFXIL57joI and treat any Dracena this way. CHop off the top;rip all of the leaves off of the plant until you have a bare cane;stick it out in the hot summer sun until you see knobs of new growth forming and then bring it inside when the knob start looking like leaves. In the tropics they take FULL sun. In the States-Dont try it. My marginatas are going through this stage now and in October I will bring it inside after I plant the tops that I cut in the base of the pot.

Oh distilled water not drinking water. Use rich organic soil and avoid fertilizers. I like fish emulsion and it makes the house smell good and flies love it. So does my dracena. Bat guano is good to use to and no smell or flies.