"Terry & Angela" wrote in message
...
Our Gardenia's have yellow leaves and most of the flowers die and drop off
before they open can anyone help we live in S.E. Queensland

Terry & Angela


It would be a magnesium defficiency, so a dose of Epsom salts will fix it.
Start off with a handful around each plant, maybe 2 if they are around 5ft
high.
Water it in.
At the same time check for scale on the stems/branches. It seems to be
common around here at the moment.