Help! Neighbor mows down Butterfly Bush

I planted a baby butterfly bush my brother gave me from one of his volunteers last year. This year it was still very short but looked like it was doing well. My well meaning neighbor mowed it down by mistake. Will it come back and be ok? It looks to be putting out new shoots.

Butterfly shrubs can likewise be engendered by stem cuttings. In pre-summer and late-spring take a 4-to 6-inch long cutting of another stem once the stem is sufficiently durable to not twist.