Generally speaking, this is a great idea! I think there are many other sites out there with the same theme, but totally different delivery. There's tons of available info out there, but if your site could pull it all together, sell seeds, offer tutorials to new people, etc, I could see it being a big hit.....you definitely have the right product "idea" at the right time, but you also have a lot of competitors in this area.

clever - this is the marketing thread that could be very valuable - as a marketing guy I think this is brilliant