Doesn't sound like any of those things would keep them from blooming to me, very odd... I'm seeing a couple of Daff issues here I can't explain too. I planted 10 Topolino in fall of 2013, and last spring they all bloomed, but this year only 3 bulbs bloomed, 5 blooms total. They're in a bed where lots of other Daffs are doing well, as well as a Peony, several bearded Irises and Siberian Irises, Lilies, Lilac, and other perennials. I had thought maybe other plants had shaded the foliage and kept it from replenishing the bulbs, but then realized I have other shorties in there doing well -Tete a tete and Minnow.
The other that is perplexing me is a white trumpet/large cup called 'Weena'. Also planted in fall of 2013. The bloom last year was not great, but I figured after a year of settling in, they would start showing off. They haven't shown up at all this year. I don't think I've ever had a Daff no show the 2nd year, can't figure that out at all. I did notice Brent and Becky's isn't offering it in the new catalog, maybe that's why.
