obliqua said: Food may be the problem. Thanks for the ideas.
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You might want to give them bulb blooming fertilizer -- if the balance of nutrients isn't right, you will just get a healthy plant but no flowers...
I'm just trying things out here myself -- I have my lights in my room where I can keep up with the plants, and they stay warm with me. Since you didn't have luck putting them in a cooler basement, I'll stick with this arrangement at least for this winter, and then see. I was thinking I had put mine in too large a pot if being pot-bound encourages them to bloom, but I think again I'll stick with the pot for this winter and let the bulbs settle in before I try to move them.