My agapanthus stalks are all falling over, one plant at a time. I’ve had them 29 years and this never happened. Please Help?

Question

I’ve had these agapanthus in my yard for 29 years and they’ve never dropped like this. It’s almost like a poison is spreading along my back fence. One by one these beauties have fallen over. I’ve no idea what to do.

Answer 1

Problems with agapanthus typically result from overwatering. Have you had a lot of rain this year? Also they should be divided about every three years. This should help:
https://www.gardeningknowhow.com/ornamental/bulbs/agapanthus/diseases-agapanthus-plants.htm