I have just bought and planted some white Daffodils for cutting next spring. I buy them from a nursery that allows you to pick your own bulbs from large wicker baskets and prices them by weight.

The main variety I chose was Mount Hood (div 1C) which has a white perianth that stands at right angles to a large white trumpet. Any hint of cream as the flower opens is soon relegated to a pure white.

Mount Hood dates back to the 1930s but remains the best known and most widely grown of the all-white trumpet daffodils. The flowers open creamy yellow and mature an even creamy white. They make a bright splash in early spring. Cream coloured Daffodils get whiter as the flowers age

Another favorite is Thalia, a Div 5 Triandus narcissi with pure white flowers and a distinctive petals.

In the same division is Ice Wings and Silver Chimes which has a slight yellowing to the cup but both are best white daffodils.

The Jonquilla family are well scented but I am unsure of the variety above as the red stamen are putting me off.  Pueblo and golden Echo are thought to be the best virtual white.

I like this shot of another unnamed Daffodil. Look out for a new Poeticus called ‘Cutless’

This Erlicheer is excellent for indoors with 15-20 double florets per s6tem. It may be flecked with some yellow but is essentially a white variety well known in Israel.

Photo Credits
white daffodil by steve p2008 CC BY 2.0
White Daffodil by ptc24 CC BY 2.0
White daffodils by ramson, CC BY-NC-SA 2.0
daffodils / jonquils by cskk CC BY-NC-ND 2.0
white daffodil by puddytat30141 CC BY-NC-SA 2.0
Erlicheer daffodil in the morning by knoxilla CC BY-NC-SA 2.0
“Paper Whites”, Narcissus cv CC BY-NC-ND 2.0

Other Daffodil Links
Tips for Growing Daffodils
Top Ten Miniature Daffodils and Narcissus
Daffodil society top tips
The society
The international Daffodil register
Bulbs from Thompson Morgan  including Narcissus ‘White Diamonds Mixture’  an elegant departure from the traditional yellow daffodil. It adds a dazzling white sophistication to spring borders and containers. This superb mix combines some of the best forms, including some rarities, to give a wonderful range of shapes and sizes. Plant them in bold drifts for a beautiful, naturalistic display. Height: 35cm (14”). Spread: 15cm (6”).
The American Daffodil Society

‘The Canary sea daffodil, Pancratium canariense, is endemic to the Canary Islands – meaning it is native only to that region. Catch the last of its flower in the Princess of Wales Conservatory during September’ Kew CC BY-NC-SA 2.0