In the green bulbs will arrive with you with ready established roots and foliage making it easier to plan your planting scheme as you can see exactly where you have put each one.

If planted as dry bulbs they can take several years to establish and to settle down in their new situation and will flower poorly during this period. The reason is that the in the green bulbs are lifted fresh and re planted again almost immediately which helps them absorb moisture quickly after replanting. Dry bulbs are usually stored for a few weeks before replanting takes place and as a result they are slower to absorb moisture when planted, they take longer to establish as a result.
Snowdrops and aconites will benefit from being planted at this point in their cycle, which means that they will bed down well and give a wonderful display next winter/spring.
Bluebells, which have a later flowering period, should bloom this year from late spring to summer.

These bulbs can be planted straight out into their final position, why not go for the woodland effect and plant them in clusters around the base of trees?