I planted some agapanthus (about 10 or so) in a raised bed last year, and am delighted that they've recently come back as I forgot to mulch around them last winter. The bed is slightly sloping downwards, and I have an azalea, small white hydrangeas, eriseyum bowles mauve, salvia, lavenders, hebes and a very low creeping rose in there as well as the agapanthus. All of the plants are a year or so old.
Obviously, everything needs to be watered, but I've read that agapathus don't like too much water. Whilst that is good to know, I mixed them in amongst all of the other plants which do need a lot of water, especially the hydrangeas. How do I avoid giving the agapanthus too much water whilst ensuring that the other plants have enough, now that they're all in the same bed?!