I double checked a culture sheet that arrived with some bulbs from Nerwchurch Nerines in England last year, and her is what it said.... "Watering - Too much watering will damage the roots. If in doubt, do not water. During a hot summer, periodically damped the surface of the pots with a watering can using a rose attachment. Plants need to be kept dry, but NOT dehydrated. During August, as flower spikes start to show, water should be given." On another note, I read in a research paper how Nerine sarnienses as well as some other Amaryllids, form up to three years worth of flower buds inside the bulbs, which remain dormant until stimulated to set forth into bloom. Logically, a "sick" bulb that has been unsuccessful to get to bloom ,may take a few years of coddling to restore blooming cycles.