Stop Flowering?

Maybe a dumb question,but a few outa over a dozen outdoor plants have began to flower;is there a product made that will halt flowering?something perhaps i could start feeding them? Any help appreciated!! I bought lareg rubbermaid cont to use as large dome&will just clone them.but thoght id ask!

As far as i'm aware you can't halt flowering, it's like a big ship, you throw it into reverse but it'll keep going forward for a while after.

I kinda figured.there big enuff to flower,its just not right!!!im gonna go ahead&clone them after work&let them do what their gonna do.im just thinkin its gonna get warm&sunny,days will get long&theyre gonna get confused&all f'd up.3maybe 4 outa 18 have started flowering.sad really!thanx tip top!!