My favorite seed packets come from Botanical Interests. Descriptions, history, cultivation advice, seedling photo ... they fill front and back and insides with fine-print text.
I know - I'm their target audience. Verbose, more verbose, most verbose.
Normal people do only need the name.
I've toyed with the idea of making up "cultivation advice" for classes of seeds so I could add one standard slip to any Spinach pkt, or a different slip to any Bok Choy pkt. Then the "real seed label" would only need to qualify the generic advice with phrases like "cold-tolerant" or "bolt-resistant". But probably many or most seed traders already know more than I do.
Some swaps might want to come up with a way to describe how much pollen isolation self-saved seeds had, but that seems like a very murky thing to try to describe concisely. I think the default assumption is "some or lots of cross-pollination likely" unless stated otherwise.
