Habitat
Vitis vinifera
originated from western Asia and in Europe. Throughout history
though this species has made
its way across the Atlantic and into the United States.
V. vinifera grows best where winters are mild and
summers have low humidity with little rain. They are methods you can
use to grow them were conditions are
All the states in green are the ones that are able to grow Vitis vinfera.
The grapevine goes through a growing cycle. During winter the plant is dormant and there is no growth. Then when the temperature gets warm enough, around spring time, the vine then starts the activation stage. If the temperature stays constant then buds begin to swell and turn a green color. This is know as bud break, as green shoots (stem) begin to grow from the buds. The next stage, debourrement, is and intermediate stage between bud break and inflorescence. Inflorescence is when the berries being to cluster. The shoots begin to grow and enter pre-bloom. When the temperature begins to get even warmer, summertime, the vine then does bloom. This is also known as anthesis, and during this stage the berries are fertilized. The unfertilized berries are called shatter. Next the berries start to ripen and change colors, know as veraison. After the fruit is ripe then it is time to harvest. Finally the vine gets ready for winter again and enters deactivation and goes into dormancy again.