The "hoop-petticoat daffodil". This earliest and tiniest dwarf gem with golden conical cup-flowers, and narrow pointed petals, thrives on the hottest of rockeries and will do well and even self-seed in moist turf rather like cylamen do.
Sow at any time and cover thinly with compost or grit in gentle heat or a warm bright spot outside. Grow on individual seedlings in three inch pots. Plant out in a well-prepared bed or in a lawn or moist turf where it will perform reliably year after year.