The Ripening bee claims its flower is "Fruit." There is a to-do comment in the flowers genetics which asks what should be done for this flower type, lines 117 and 118:
case FRUIT: {
return Collections.emptyList(); // TODO: what is this supposed to be? It was Items.APPLE before.

If I am reading this correctly, the empty list means there are no blocks that will match the bee's flower requirements. What are the plans moving forward to resolve this issue?

https://ftb.gamepedia.com/Ripening_Bee seems to suggest flowers used to be sugar cane? Maybe we should update it to that.