In the second year of the vines life after planting dormants, you have to develop the trunk. Earlier in the spring we thinned the shoots to two and now after the threat of frost has pasted, we pick one and tie it to the rebar. This will become our trunk for next year. Remember, the shoot has to be at least the width of a pencil by the end of the growing season. In addition, to develop good shoots for 2012, I’ll cut the shoot down to 30” when the shoot is 4 1/2 feet tall. Learned that in one of my classes from Daniel Roberts! He is a very high end consultant here in Sonoma that came to one of my classes at the Junior College.