Jim, can you explain what you mean by serious deterioration? For instance, are the bulbs themselves deteriorating? Or do the bulbs survive but in diminished size? What is the condition of the roots? When you say that plants kept in the greenhouse dry gave poor results, do you mean poor results in terms of bloom, poor bulb size, or poor results in terms of overall plant quality, or what? It was an older post of yours which prompted me to bring up the Nerine question again. I would so much like to succeed with these plants. The one I have produces long-lasting flowers the color of cream mixed with blackberries - very nice. Tell us more about your experiences, please. Jim McKenney Montgomery County, Maryland, USA, USDA zone 7, where my Nerine are still in bake/broil mode.