Oh, they get HUGE! I planted exactly FIVE this season - I’ll have pictures later in the season. Butterflies just go crazy for them, but they do take up a lot of room in a garden bed.
One is in my Veggie garden and the other four are on the edges of our (ill-fated, it seems; Ragweed taking over) Wildflower area.
Purple Cornflower, Coreopsis, Scarlet Runner Bean blooms, Kale, Oregano, Sage & Asparagus fronds.