Beginner Gardening: separated narcissus didn't bloom last year, are they dead?, 0 by LateToBloom

LateToBloom wrote:
I have about 25 Narcissus bulbs that had been my grandmother's, and she called them Poet's Daffodils. They have bloomed for me every year until 2007, so I dug them up and separated them and replanted them. The stalks just laid down and turned brown. But this summer, they broke through the soil again and sent up green stalks, but not one single blossom. Have I killed them? I am just learning about all the plants I have taken for granted for the past ten years, as I fear I am losing them due to my ignorance. My iris haven't bloomed for 3 years now, but they do grow foliage. I am simply heartsick. As I said, I got these bulbs and the iris rhizomes from my grandmother, and she got them from her grandmother when she left home to marry in 1918, so they are simply irreplaceable for me. I would like to someday give them to my granddaughter, IF I can keep them alive. Any help would be greatly appreciated. I borrowed this picture from the Plant Files Pictures, I hope that's ok.