Browsed some entries about zukes..very helpful. Am planting Tondo di Placenza Zucchini... don't really know what that is. Bought many open-polinated seeds from farm in the mid-west. This is my first container garden and plan to put one zuke per 5-gal. container. My question is can I just let them vine on my deck?? Also how many seeds do I plant per container. Oh, yes, I have a LARGE deck..plenty of room. Thanks in advance for the help.