Between manual gathering and Litter specialists, keeping Honey stocked isn't hard. The Litter route is less effort once you've assigned the right Pokemon to the job.

Sweet-smelling honey. If you spread some where a Pokemon lives, that Pokemon will return home.

Raw Material
LitterFlower Beds / Gather Honey
Gather Honey specialty (Vespiquen)
LitterCombee Litter Drop
Litter specialty