For instance, these are what Daffodil Bulbs look like when you buy them. And whether they are big or small, when you plant them into holes in the soil, the bottom of the bulb, where the roots will appear must be placed at the bottom of the hole, and the top of the bulb should be the height of the bulb below the surface of the soil.
Within a short time after planting, the bulbs will begin the long process through the Winter period of throwing out roots, gathering in moisture, and the bulb will begin to swell at a rate the will allow it’s first shoots to break through the surface of the soil some time between Christmas and early February. They then go on to flower.