forget-me-nots beginning to bloom again.

Question

Should I dig them up in order to insure Spring flower?

Answer 1

How fortunate to see another bloom so late in the summer. One the heat of summer has reached its peak, the blooming will usually dwindle. To the best of my knowledge, there's no need to dig up the plants unless your ground freezes deeply; this plant re-seeds itself and should come back up in the spring.
https://www.gardeningknowhow.com/ornamental/flowers/forget-me-nots/growing-forget-me-nots.htm