Posted: 03/01/2016 at 14:30
I have a variegated one, now at least 30 years old and rather large. Every now and then it has shed most of is leaves and looked sickly because I've neglected to feed it.
The cure - for me - is to re-pot in fresh compost and a larger pot and then water well. I add some slow release fertiliser sticks or granules and mulch with expanded clay pellets. Give it a week or two to start new shoots then remove any dry, bare twiggy bits.
I keep ours near a south facing window so it gets lots of light in winter but no direct light in summer when the sun is high. I put a tray of water on the radiator to humidify in winter.
When we go away, it has hols too. I take it upstairs and put it in the shower, give it a good rinse down to remove all dust from the foliage and soak the pot well then close the door and leave it in a happy micro-climate.
It is now large enough to get its own lights and baubles for Xmas.