Oh, David I think there may be good news and bad news here. It sure looks like those plants needed to be divided. That's the good news. You did a great job.
The bad news is that Agapanthus really bloom their best when they are somewhat root-bound. So I'm thinking you shouldn't be surprised if they pout and don't bloom for another year or two. Be patient, it will be worth it down the road.
If I might suggest one possible modification to your nice looking set of 4 plants there - I'd take the one in the smallest red pot and double it up with the one to it's left. Otherwise, it's going to be 2 or 3 years getting the pot filled up so it's cozy enough to start blooming.
I don't know what it is, but they seem to 'feed' off each others' roots or something. Mine are all in a humungous pot that they've been in for several years. I potted them up from a 18in. pot, and just 'thinned' the clump of a few of the most overgrown fans. First year they were in there, no blooms at all, second year I got a couple then the last few years it's just gotten better. They're not quite as 'bound' up as your wife's plants were, but it might be Sawz-all time at my house next year, too. We'll see.
