United Kingdom 
why are the leaves on my star jasmine turning red
25 Jun, 2010
Answers
It's a general sign of stress, which can be caused by all sorts of things, but most frequently, as Tug says, by under-watering.
25 Jun, 2010
Previous question
Next question
Frequently a symptom of drought, or sometimes a sign of too little nitrogen.
25 Jun, 2010