Whether you train zucchini to grow vertically might depend on the space in your garden. If you have the space, it might be easier to just let the plant sprawl. However, growing them vertically saves space and allows more air circulation, which can help deter disease. It does, however, take a little more maintenance, with tying vines, etc. Although there are several systems you might employ, one option is to use a trellis about 5 or so feet tall. You can use strips of pantyhose for ties, and for slings for the fruit. Tie loosely (but with a firm knot) so as not to damage the growing vines.
Whether you train zucchini to grow vertically might depend on the space in your garden. If you have the space, it might be easier to just let the plant sprawl. However, growing them vertically saves space and allows more air circulation, which can help deter disease. It does, however, take a little more maintenance, with tying vines, etc. Although there are several systems you might employ, one option is to use a trellis about 5 or so feet tall. You can use strips of pantyhose for ties, and for slings for the fruit. Tie loosely (but with a firm knot) so as not to damage the growing vines.