I believe that one is 'Harmony'. I planted 50 of each of 'Harmony' and 'Alida'- if I recall correctly, Alida is lighter blue. There is also a clump of 'Cantab' in that bed that have been there a few years. My goal is to have the whole area covered in little blue bulbs as understory plants for all the yellow and white Daffodils.
Annette, I wonder if I.reticulata are attractive to rodents? Curious why they would have dwindled...