From the various comments, for which I thank everyone, I've been aiming in the right direction for both. Just not successfully yet, if success is measured by flowers. My Sternbergia bulbs are in a sunny well drained spot near a bird bath, where I water in summer. This is the warmest part of my garden (which is not saying much compared to truly warm summer climates). I've added compost to this spot, and it's also getting the general fertilizers used to counter the wet winters and removal of all water soluble minerals thereby. The Zephyranthes bulbs are in pots in the cold frame, which is the warmest place of all in summer, easily 10-15 degrees above outside temps, and much warmer at night than in the open. It could be that they need even more summer water than they've been getting. I may try putting the pots in a tub to keep them wetter still. I have a Pancratium bulb soldering along in the cold frame in a pan of water, now a couple of years old, and adding a new leaf or two every year, so Zephyranthes may like the same treatment. Kathleen