I’ve had this Dracaena marginata for over 8 years now (so I’ve got quite attached to it). It has always been fine no matter how I’ve treated it. I’ve forgotten to water it and overwatered it over the years.
Then in November, it started shedding leaves. At first, I thought it’s normal because it has done that before when it was growing but the shedding didn’t stop and increased. I thought I’ve overwatered it so stopped watering it and moved it to a sunnier spot in the house.
Then I’ve discovered one of the other plants in the house has fungus gnats and the gnats have infected this plant too. I sprayed with neem oil and eventually also repotted it, cleaning all the old soil around the roots and cutting off some roots that were soft and/or hollow. None of this helped. The new leaves on the top have some discolouration too.
I am now thinking of propagating it to try and save the plant. (It did stop shedding leaves in the last week - there is not much left anyway). Has anyone had similar experiences with Dracaenas? Should I go ahead and propagate the old plant into new plants?