Keeping agapanthus upright
I need tips for preventing my tall agapanthus from flopping over. I have a dozen clumps of various sizes since they self-seed around the garden, and there's no way I can stake each flower head. I've tried semicircular supports but if the support is too high, flowers slip underneath and if it's too short it's not much better than having nothing. I don't mind a bit of floppiness, I just don't want the flower heads on the ground.