If you look up a specific plant in the ATP data base, it will tell you at the top if any members have or want that plant. If you click on that link, it will take you to a page with the members who have or wanting that plant listed. It will tell you there if the members who have that plant have it available for sale and or trade. Hope his helps. It would be nice to go to a members plant list and just see what is available for trade and or sale. If this function is already available, I have not yet figured it out.
Gale