You may want to check out my Seed Catalog in the Guides section...

Pages 2-4 contain pictures of the seeds, flower and foliage names that may be too many spoilers for some, but the first page contains an introduction to the Tier system and some basic gardening facts. It is still spoiler information (in that some players may want to figure it out on their own), but it is useful to avoid bald-headed LDW fans.