After flowering, before frosts, lift and store in dry compost in a frost free environment. In some areas, it my be possible to cover the plant with a deep mulch and over winter it in stitu
Try to plant in a location that enjoys full sun and remember to water moderately. Black Narcissus is generally regarded as a tender plant, so it is really important to plant out well after your last frost date.By our calculations, you should look at sowing Black Narcissus about 60 days before your last frost date.
Over winter as tubers in dry compost, plant out from March onwards, in well cultivated ground. It prefers a sunny position protected from strong winds. Use in borders or pots or as bedding plants, position according to expected height of mature plant
Black Narcissus is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.