I planted 7 today:
2 Cascade
2 Chinook
2 Centennial
1 Willamette
I will be moving at some point this summer, so they are in pots, maybe 4 gallons of dirt in each, one rhisome per pot. I used tomato cages rather than a trellis to make the future transplanting easier.
As we learned from the scraggly bush of hops at the Picaroons brewery, hops don't actually need any structure to grow on to be successful.