Plant them where they get at least a half day of sunlight. Avoid north sides of buildings. Because of their need for well-drained conditions, they grow poorly in tight soils that have poor internal drainage even though a location with good surface drainage has been chosen. The natural soil type should not deter anyone from growing daffodils, however, as soils may be improved. Light soils generally will not need many amendments, but in heavy clay soils add liberal quantities of coarse sand and some organic material such as peat moss or leaf mold.
Animal manures tend to encourage the development of basal rot.
In tight soil, as much as six bushels of organic material per 100 square feet of bed area may be added. Packaged bulb food is convenient to use. When planting bulbs in clumps rather than beds, about a handful of fertilizer per 12 bulbs will be adequate. Be sure to mix the fertilizer thoroughly with the soil. Never place it directly in the bottom of the hole.