The spring meeting of SEPS will be at the Bamboo Farm and Coastal Gardens on April 22. This is an open meeting and worth attending if you can get there without a lot of trouble. Though their primary focus is palms, they are interested in all types of plants. They have a very knowledgeable citrus group, and there are some interesting citrus planted and maintained at this site by SEPS. The oldest Thomasville I know of is located there.
Ned
http://www.sepalms.org/