Julia,
OK I can see the addiction taking over! Soon you'll be tearing up your lawn to make more seedling bed areas. It is a WONDERFUL addiction though. Maybe the Americans will start making the Europeans envious, much like it was in the glory days for the US in the 70's and 80's.
Like you I'm going to grow a couple crosses in troughs or large pots just to keep an eye on them. The remainder will go into long raised beds.
Now we need to get Greg crossing too.
Kevin