You just need to chop the brugs to a reasonable size. Every piece you cut above the "Y" will root into another plant by placing the cutting in a few inches of water. These are your backups in case your big plant freezes. You don't have to keep every little piece you trim, just a few....or one. You'd be amazed how quickly those cuttings root.
If you don't want to bother with extra brugs, just chop the top of the potted brug about a foot from the pot and toss it. You may or may not get blooms from that pot next year. Or.......if you have a place to root that top, you will have a nice standard brug plant ready to bloom for spring. And then, toss the pot, or not!
There's always someone looking for a brug cutting to trade.
