chloroplasts. The leaves breathe in carbon dioxide from the air and receive water from the roots of the vine. The chloroplasts take the water and the carbon dioxide and when the light hits the leaves, it turns the chloroplasts into sugar to feed the grapes and releases oxygen in the air for us to breathe. This process is called photosynthesis. It happens in every green plant. Without it plants could not make the food they need to live, and we would not have food to eat or wine to drink.
The grapes will get bigger and in a few more months it will be autumn and the fully-grown grapes will turn purple and be ready to harvest. The leaves will turn a lovely red and gold. Then suddenly it will get cold, signaling the arrival of winter, and the leaves will turn brown and die, leaving only the brown branches of the vine. Three months after that it will be spring again and the dormant vines will once again begin to leaf out. Then it will soon be green season again. In wine country we always know what season it is. All we need to do is look at the vines and they tell us