Spiderwort

Question

My spiderwort looked beautiful and green early in the spring but now is beginning to dull and look black around the blooms. Should I cut it back now so it will look fresh again?

Answer 1

I would suggest trimming spiderwort's early growth back by one-half, deadheading after the first bloom by cutting back one-half again, and reducing the plant's height by two-thirds after blooming has stopped.
https://www.gardeningknowhow.com/ornamental/flowers/spiderwort/growing-spiderworts.htm