Come swap seeds, perennial plants (if you can dig 'em up at this point!), and seedlings at the Library with Grow Pittsburgh and Phipps Conservatory. Bring extra open-pollinated (not GMO or hybrid) seeds (commercial or ones you've saved) -- or don't! There will also be some seeds that have been donated by wonderful seed companies. There will also be a hands-on activity for children, a seed-starting workshop, and seed-saving and gardening experts available to answer gardening questions.
11 a.m. - 2 p.m. at the Carnegie Library's main branch in Oakland, 4400 Forbes Ave. 15213. Free and open to the public; pre-registration not required.