I would think it easier to have hybridizing threads within the individual plant forums, as is currently the case in the daylily forum for example, except for any plants that don't already have their own forum. But then if there's a separate hybridizing forum it could get confusing if some discussions are in that and some in the specific plant forum. Edited to add, where there isn't a specific plant forum then there could be separate hybridizing threads in the generic forums, like annuals, perennials, trees and shrubs etc.
