I got it to work in Chrome. It's more complicated but it works. I went to the search center on chrome, mine is an icon of the earth with a couple tracks going around it, like a nucleus and is at the top on the menu bar to the right of the page location. Click on Options, click Manage Engines, at the bottom click Add Engine. Follow the instructions. Put a name in the top blank, the icon link (which is <http://www.allthingsplants.com/favicon.ico>) in the 2nd blank and the following string in the 3rd blank <http://garden.org/plants/search/text.php?q=searchcenter . > Note that there is a dot after a space in the previous link. Do not include the < or > when you add these, they are only there so the entire string shows up in this comment. Close it all up and Allthingsplants search engine will appear in your search center.
