Q: I have a potted gardenia in my conservatory. It's one of my favorite plants, mainly for its beautiful, scented flowers. However, some of the lush green leaves have recently turned yellow, which has made me a little concerned. What could be the reason?
A: Gardenias are wonderful fragrant plants for a conservatory, and can also be grown outdoors in warmer climes. They are quite picky about their growing environment, though, and a change in color often means something is amiss.
