30 Dec 13 10:25 am
Have you tried searching on www.Clickbank.com
That's where I would go first, after that search on Bing/google, for vertical gardening affiliate programs, vertical gardening affiliate network etc., etc.
Most affiliate programs can be found in the footer links of the merchants site like http://www.garden.com/affiliate.aspx
It looks like they use www.cj.com
, most big brands will use cj.com, but some will use their own program so you need to find the signup pages.