I am still using the trial, I want to beat it before I buy the game just to be sure... but anyways, my bush has run out and I have farming researched. However... All they are doing is watering and, when I tell them to, planting. Nothing is growing. It's been about... 3 hours and they are running low on food. Is there something else I need to do? They are currently doing this in the lower field near the water. Sometimes they water the area with the dead flowers...