Ooo, this sounds like fun!
The Cornell Cooperative Extension of Ulster County Master Gardeners Plant Swap (their 9th annual) takes place on Saturday, June 2 at the pavilion near Kingston Zoo in Forsythe Park (city of Kingston.)
Here’s how it works: Drop off your plants to swap between 9 and 10 a.m. on Saturday morning. You will receive vouchers for the number of plants you bring. Then return at 11 a.m. to swap vouchers for plants! At 11:30 the swap will open to the public for sale. No early birds.
Plants should be labeled by name and color of flower, be in pots, well cared for, healthy and not on the state's list of invasive plants. (I looked for that list online but only found some drafts-in-progress -- if anyone know where to find the latest official list, please let me know.) Master Gardeners reserve the right to refuse any plants not meeting these criteria. They will also be answering gardening questions and have lots of gardening information available. For more information visit the Master Gardener's Web page.
Hmm, I do have all that lily of the valley …