Re: Black Locust!
The biggest problem with Locust is that they bloom early in the season. If the temps go below 40 they stop producing nectar, or at least that's what I've been told. I am in central KY and many years the bees don't get to work them due to weather, i.e. rain, cold temps, and such. For faster return clovers and such will give quicker results. Basswood are also good trees for honey but like Locust they can be sporadic. I would check on bee bee trees, I have no experience with these but it's my understanding they are reliable producers and bloom in just a few years. Honeysuckle bush, not vines, can be good producers in certain soil types in others not so much. The mint family are good nectar plants also and bloom mid summer here. Planting for just bees isn't making good use of your land and resources, IMO. I would plant something that I could harvest and sell to get a better return on my investment like fruit trees or something.
"Of all God's creatures, only the honeybee improves its environment and preys on no other species."--Haydon Brown