How late can you plant daffodils, I wonder?
Last year, I planted some in February, and they came up fine, if a bit late. We had a very cold and long spring, and all the daffodils were late, but the February planted ones were slightly later.
I have just finished planting 20kg of mixed daffodils and narcissi. Some of the bulbs were sprouting very slightly – as they were last year. One advantage of planting them this late is being able to throw out the bad bulbs from the batch – not too many, but a few that would not have grown if I had planted them in October/November like you are supposed to do. They had been stored cool and dry.
This year, we have had daffodil bulbs peeping out since December, which is very unusual. The snow and frost last week has slowed them up a bit.