Feeding PSB?

My PSB is just beginning to produce. Is it worth feeding it with a high potassium fertilizer to promote development of florets or is there no advantage to be had? All of the plants are in containers and were fed with chicken manure pellets when planted out last year.

My PSB is just beginning to produce. Is it worth feeding it with a high potassium fertilizer to promote development of florets or is there no advantage to be had? All of the plants are in containers and were fed with chicken manure pellets when planted out last year.

I've got some in  big containers (fish boxes) in the cold greenhouse. Like yours they're just making the first spears.  I'm going to give them some tomato feed for no better reason than I've got some sitting here that was left from last year!