This is my first year growing zucchini so I'm not too sure what will happen. The internet seems to be conflicted on whether the trellising can be done. Some people say that the plants benefit from not touching the ground and have some crazy methods to get them trained upward involving tomato cages and what not. So far they look a bit bushy, but I have them next to a trellis net just in case.
Here they are:
