Must've been something pretty bad going on there.
My ex-husband was at Bethel in the early 70s. He told me about congregations that were running prostitution rings or engaging in wife swapping that had to be dissolved and the faithful publishers split up among other congregations. Maybe it was something like that and the "sunflower" name had been sullied by the wrongdoing.
http://scottleblog.wordpress.com
The Odd Life of Jehovah's Witnesses