If by bin, you mean compost them, I wouldn't. They will have eggs and nymphs which are quite likely to survive composting.    Or in the UK does "to bin" refer to putting them in the trash to be hauled away?

If ever I get to Maine, I want it to be when the lupines are blooming wild in the meadows there. It is too hot here to have much success with lupines. I planted them once but they didn't make it in the heat and drought of a North Carolina summer.