From an early age, George W. Park was obsessed with seeds. So much so, that at the age of 15, he decided to start selling the seeds he'd cultivated from his garden. His first add netted him a meager profit of $3, but it was enough to get started. In 1868, Park Seed Co. published its first catalog, and over the years it's evolved into a place where seedlings grow from ideas into beautiful plants, both edible and decorative, with seeds delivered right to shoppers' doorsteps. And there's no need to have a natural green thumb — Park sells everything amateur growers could ever need to get that seed started, from biodomes and greenhouses, to fertilizers and soils.