this is our 3 rd year for planting a garden, & we're unsure if we need to put the individual plants in a different spot in the garden each year? Also can Zuccini be grown on a trellace like tomatoes can?
Ideally, you should rotate crops to different areas each year. Realistically, you aren't likely to have a big problem just because you plant the same thing twice. But if possible, rotate year to year. There are some squash that vine, others that grow as a bush. Most of the zucchinis you'll find are bush type, since that is what most people find easiest. But if you want a vining type, just check out the seed catalogs, and you'll find some.