I think all it’s going to do is feed your microbes, which is a good thing. The reason people do it at the end of flower is so the microbes can breakdown what’s left of the nutes and help the plant clear it out
Save you some money n get $3 grandmas molasses it’ll make 5 x as much too.
I’ve tried AN carboload and bud candy tried liquid w8 mendo honey
molasses honestly does just as good. Walmart or any grocery store too so easier access.