This looks so much better than regulation spaced bulbs lined up in single file spread over a large distance. You'll have spring blooms for well over a month when you have them grouped this way. A selection I particularly like is a mass of a dwarf variety of Daffodils with Grape Hyacinths fronting them along with a grouping of yellow and purple crocus. These small bulbs do well at an entrance to a walkway, a small mailbox garden or in a small bed with evergreen shrubs behind it. For the best impact with these tiny bulbs, place them in an area you will view close-up, rather than a distance.
Bulbs do fairly well in most any soil.
Some are pickier than others so check your plant encyclopedia or the instructions that come with the bulbs. In very heavy clay or in sandy soil, some soil amendment will be necessary so that the bulbs don't stay too wet or too dry. Most bulbs like full sun and will do well even in areas that will be shady after the leaves appear on the trees. Summer and fall bulbs can be planted in the spring. Choosing a high quality and healthy bulb is the best insurance for beautiful spring blooms.