What is the best time to clean out and prune in the garden for the spring flowers..?

Your bulbs should have been planted in the fall before frost hit. I don't know where you live, and that makes a big difference. Right now most of the US is blanketed in snow and ice so we aren't thinking about pruning roses. We do all of our pruning in the fall before the plants and bushes go dormant. When spring comes they kinda take care of themselves. Good luck. Maybe add a note telling us where you are located. :-)

Edit: For Baltimore MD, what I said already is true. Do that yard work in the fall before frost. Plant the bulbs in the fall too, before the ground freezes. We live in Carroll County! Oh, and don't be tempted to buy those spring flowers before all danger of frost has passed. If any bulbs are already planted in your garden, you will see those first. The stores put the annuals out pretty early, and folks tend to jump the gun on the weather. May is generally the best time to plant annuals, but more like the middle of May.

I guess with butterfly bushes you mean Buddleia davidii. They usually react well to heavy trimming in early spring.

Rose bushes like it a bit earlier, actually now - if the winter is mild the may start growing again soon.

Daffodil bulbs are best set in autumn, but you could still have some luck keeping them in the fridge for a few days and then planting them not too deep in frost-free soil. Or grow some in pots in a bright but cool place and move them outside as soon the weather gets milder.

I usually start my pruning in late March as soon as the weather starts to change. I clean up all the leaves and dead matter in the flower beds and maybe plant some early seeds if they can take frost. The best time to plant most any bulb is in the fall - like Oct or Nov. Planting them in the spring may or may not be enough time for them to establish before they bloom. With daffodils, you should be okay as long as you have healthy bulbs to work with. I prune my roses back before their leaf buds start to open. For miniatures, I just prune back the dead parts and for tea and other roses, I prune back into a shape I can live with.

You need to get your bulbs in the ground in the fall. Roses should be trimmed and hilled during your fall cleanup as well. I wrote a great article I would like you to read regarding fall cleanups if you are interested please have a look.