The Union Grassroots Festival returns Aug. 8, 2026, with a fun, family friendly day for all. (Isabella Crowley/The Observer/File)UNION — Grab your craziest hat and head to Union — it’s time for the annual Grassroots Festival! Beverage said the Union Grassroots Festival offers free, family fun to all. Just make sure to peruse the yard sale outside the VFW before you go. Union City Park will be one of the popular spots to hang out for the Grassroots Festival.