Once again, “Love Seed Mama Jump” will take the stage at Anson B. Nixon Park for a fundraiser to benefit the park, a hidden sanctuary of ponds, streams, fields and woodlands, tucked into a corner of downtown Kennett Square. “Love Seed Mama Jump,” a six-piece rock band from Dewey Beach, Del., will be backed up by “Californium,” a Kennett Square-based alternative rock band. The festive, family-friendly, rain-or-shine event will run from 2 to 7 p.m. Kids’ activities will include face-painting moon bounce, sports demonstrations, and more. Attendees will also have an opportunity to learn more about Kennett Township’s new Sustainable Development Office, and food and beverages will be available. No outside food or drink or pets will be permitted for the fundraiser. Tickets are $15 for adults; children under 12 are free. Advance tickets are available online at www.ansonbnixonpark.org