Help needed on dracaena janet craig
A friend's company is moving and they are getting rid of all their indoor plants. She gave me three plants that look like dracaena janet craig. They are not in very good condition though as a lot of leaves have black/brown spots or turned totally black. I suspect they were either getting too much water or too little. Or is it having some kind of disease? Normally how often should I water them and how much each time? They are about 5 feet tall. I live in the bay area, ca and the room temp right now is about 65-75F. Thanks for your help. Hopefully I can save the plants.