After touring Summerset and seeing the greenhouses, I got to thinking... It would be neat if within those greenhouses and random potted areas (like the island by Dusk Keep or Morrowind planters, etc) would have Alchemy materials. They should probably be a stolen commodity (Steal vs. Take), and I'm not sure how the respawn timer should work. I figured this would be a nice incentive for touring around landscapes a little more... and may be give way to a furnishing item that could do the same for you.
Gathering materials is not difficult; this is just an idea to add some flavor to certain areas and perhaps boost the availability of some of the more exotic mats for new players coming in.