My agapanthus did so well for a couple of years and now I just seem to get a lot of healthy leaves and just a few small flowers. Someone told me that after a while, in our sandy soil, the bulbs start to sink a little to deep and they need to be raised up (same with Amaryllis). Well, it is on my list of to-do's. But there would be quite a lot digging involved and you've just got to get in the right mood (and it hasn't hit me yet !).