Miniature daffodils have been growing in England for more than three centuries. U.S. gardeners are just discovering them, thanks to new hybrids and the desire for smaller plants in city gardens. These little plants thrive in rock gardens where the soil is lean and drainage is good. Give them ample moisture while they are in full spring growth and then let them bake to ripen the foliage and nourish the next flower, says the American Daffodil Society. Mini daffodils afford a long blooming season, first with the bulbocodiums, trumpets and cyclamineus hybrids, followed by the delicate triandrus and ending the season with late-blooming jonquils.
Plant daffodils when the fall soil is cool, up to any time until the ground freezes.
They will grow in light shade but do best in full sun. Deep shade keeps them from blooming after the first year. They grow well in most soils but need plenty of moisture from the time they are planted until they finish growing in late spring. A good soaking once a week is not too much. The soil, however, should drain well.