Nope.
She did. Twice. On the day phase after Queen had control of Town's abilities, Flower blocked her a few hours in and it stopped Queen from controlling anybody for the remainder of that phase(tho Queen was able to get a few actions ahead of time but still). On the day phase Queen got lynched, Flower yet again blocked her and Queen couldn't jack. Were it not for those 2 blocks, Town likely wouldn't be winning as decisively as they did now cause Queen's plans were something else