i am going to try a garden, and i have some questions. i have a henry field's catalog, and was just going through it looking at what i want to grow. my questions are: in the potato section, it says one offer is 30 "sets"; what does that mean? on jalapenos and such, one offer is a packet of 25 seeds; how many offers do i need per row? my rows will be roughly 8' long. some of the stuff i am going to order is 100 seeds per offer, some 25, the onions are 250. i need some help on this stuff. i don't know anyone that knows this stuff. any explanations?