They can be transplanted now. I would carefully dig them up, dry them for a few hours and hang them in net or mesh bags in a dry and cool area like your garage; then plant them in September where you want them. Or, you can plant them now. The ideal time is right after they have gone dormant; but most people store them for a few months anyway, so the time is approaching! You can also take the time to amend the soil with bulb fertiliser (just a bit, apply the amount the manufacturer recommends) and then again lightly when their foliage peeps through next spring. After that, one more time right after they have flowered helps to ensure new blooms next year.

There is no advantage to storing the bulbs out of the ground for any length of time. You can dig, divide and replant now or you can wait until a bit later.

There MAY be an advantage if the garden is not ready or some other circumstance comes up where you cannot plant right away. That is why I suggested you store them if you NEED to. You can also, as I said at first, plant now. But bulbs can be stored for awhile, if necessary; and that is part of the beauty of them.

the first question i would ask myself is why didn't they bloom? how long have you had these bulbs, if you purchased them last year they might be blinded. dig them up and check them for rot and or bulb flies. to check for bulb flies pick one bulb and slice it in half, trust me you cannot miss the nasty larve in the center. it seriously made me ill the first time.

if they are blinded go here http://www.directgardening.com/detail.asp?nav=bul&pid=6311 and get a 1/4 bushel of mixed daffs- for 24.99 and plant them. I bought from them last year and am buying from the again this year. the blooms are fantastic! don't worry i don't sell for them. i also like michiganbulb.com let me know how it goes

You bulbs need full sun during the winter and spring seasons. If your bush was an evergreen, that would explain why your bulbs quit blooming. They weren't getting enough sun. Also, the shrub may have been sucking all the nutrients from the soil. Bulbs are great under deciduous shrubs, but you do have to fertilize.