If the cuttings have new growth, roots are certain to have formed. You can test one cutting by gently trying to pull it out of the soil - if there are roots, there will be some resistance. Don't pull it right out - to do so would be to damage the roots. You can try transplanting some of the cuttings now, as long as you can keep them warm. As you do it, try not to disturb the neighbouring cuttings which haven't yet shown signs of striking. Don't just yank the cuttings out - use a small fork or spade, and lift them out from underneath, bringing with it as much of the soil as will adhere to the roots. Those baby roots are very tender and can easily get damaged. When transplanting, make sure you bury the rootball no deeper than they were originally.

I always pinch flower buds on plants that I am getting to root (especially on hard to root stuff). This is because of determinism. When a plant is flowering all the energy is being put into that flower to create seed and reproduce itself. It is beneficial to pinch the flower off. This will change the hormonal balance in the plant. It will make it regroup and make more roots and re-try to flower again. I would pinch, it should increase the success. DAN

Some plants, not all, respond to cutting back by an explosion of new growth. Pruning is, after all, more of a growth promoting activity than a reduction. As a professional grower, timely cutting back is essential to produce a full pot exploding in flowers and promising buds. Petunias, among many other species, respond emphatically to being pruned; any grower who doesn't actively follow such horticultural practices is missing an essential step. Now that I simply tend to my own gardens, snipping, disbudding, and pruning is simply a routine part of gardening.

Just a few weeks ago I was asking similar question on another forum, but my newly planted (fall 2015 ) plants have quite a few buds - 2 to 7 with everything in between in fact on different ones. One bud is perfectly fine, a few one are fine as well, just cut the flowers off right after they are done so they do not produce seed. I previously had plants with as many as 3 and they were fine afterwards. I got rid of some of my buds by the way - the most numerous ones.