My mother likes to read "garden gate" which is a pretty good gardening
magazine that has lots of ideas and tips for gardeners. Horticulture is one
that I have tried a few times but they seem to focus too much on herbaceous
plants and I am more of a nursery person. For professionals or gardeners who
have lots of experience, I would reccommend american nurseryman, though it is
available my subscription only. It is put out twice a month and has lots of
info about what is going on in the industry and has good articles about new
introductions and things. It is packed with techinical terms however, so some
may not find it easy to read.

Toad