Every year our village garden club is given a plug plant by our local garden centre to be grown on. At the September meeting the plants are judged (by someone from the garden centre) and biggest and most floriferous wins a small prize. Obviously this didn't happen last year but I have kept mine going and hope that it will stand a chance this year. However it looks a bit yellow and I don't know why. I gave it a liquid feed a couple of weeks ago but it didn't seem to make any difference. Can anyone give me any idea?