On Tue, 16 Mar 2004 10:38:28 +0000, John
wrote:

This year, amongst a mixture of old and new daffodils, there are a
number of 'blind' plants.

Should these be thrown away or can they be persuaded to
flower next - and subsequent - years?

Does 'blind' mean with foliage but non-blooming? Older daffodils
become crowded as they produce additional bulbs, and flowering
diminishes. Dig them up after the foliage dies down, separate the
bulbs, and plant in new holes.