I have planted Alliums as late as March and they will still flower, although a bit later than usual. They will probably arrive with some roots. Just be careful not to break any roots or shoots when you plant them.
I have quoted this before but Garden Which did a trial recently of all sorts of bulbs, planting at the correct time and then in stages up to the following spring. In all cases the bulbs still flowered, in many cases the display was later / shorter or both but they all gave a worthwhile display.
To add, as I am usually late with all bulb planting that you check that any are are not rotten. If they are still firm then plant them and as fidgetbones said be careful of the roots.
Thanks for the heads up on this. I had 50 of these allium superglobe bulbs arrive from JParkers today. They'll be planted tomorrow. They also came with 8 free dwarf lupin plugs
Posts
I have some alliums that have been in my pots for some time. (I actually discovered two more bags of Allimums I had mislaid over Xmas)
They seem to be doing well. Right now.
'You must have some bread with it me duck!'