When you see a vegtable or fruit that is gold,(fully grown or not)Harvest vegtables, then when you re just about to harvest that vegetable,place the gold one(only do this if it is NOT fully grown)near it(not diagnal from the vegtable)so that the harvest sprite can water it. once it is fully grown,harvest it, then some of the vegtables (at any stage of growing,)will harvest themselves! when that happens, you will get big points!(if you do this in a competition it will help you alot.)it will also help making big chains!