Below is a selected list of Narcissus species, varieties and cultivars which currently (2020)[1] hold the Royal Horticultural Society's Award of Garden Merit (AGM).
Narcissus (daffodils) are bulbous perennials which are usually planted as dormant bulbs in autumn (fall) to flower the following spring.
Breeders have produced a huge range of sizes and shapes in these flowers, which are among the most popular of all plants in cultivation.
Plants are grouped by the RHS into 13 divisions, each describing a particular growth habit and flower shape.
[2] The main flowering season is late February and March in the Northern Hemisphere.