This is the time of the year that you can literally watch grape vines grow. I went out first thing on Friday morning and checked out some vines and marked their progress. I came back at the end of the day to that same vine and it had grown 3.0 centimeters.
The tips had progressed towards their never ending goal of touching the sun (or at least trying to do so) and a few other shoots had done their best at getting “caught-up” with the neighboring vines. This growth (as well as being totally impressive) is critical towards the vines goal of ripening a seed. The vine needs enough leaf surface area to effectively and efficiently participate in photosynthesis. Without this grand period of growth, the vine may be short leafed, which is the equivalent of not having enough energy to evenly ripen the fruit.