planting out?

Nice healthy looking plants. I would plant them out. Just remember to really firm the soil around them, make sure they are properly spaced (the gaps will look too big at the moment) and protect them from pigeons with netting or similar.

The accepted rule is that they are big enough when they have 6 true leaves. You can plant them out early but they tend to get a bit leggy and lean over. Better to pot the small ones on, planting them with the leaf stalks at ground level, and then when you plant them into their final positions put them with leaves at ground level again.

Thanks for the info Salmo.  Mine did lean last year - now I know why.  Will delay planting for a week or two.