Doug wrote about his disappearing daffodils, That could be, but they are on our property at 6000 ft. alt. But we >do not live there year round. Possibly Doug is trying to grow varieties that are not very winter-hardy? Does the property have reliable snow cover, or could the plants just be dying from freezing and thawing? Not all kinds of daffodil species and hybrids are equally cold-hardy. Jane McGary