Obviously, they wouldn't flower this year, but could I plant them now for next year? I ask as at this time of year, I can see the gaps in the borders where I would want them to come through. It autumn, I have summer perennials which are still in flower and I can't see the same gaps.
I would like to plant quite a lot of allium bulbs (maybe 60 or so, all different varieties) and more lupins in one of the borders. I will wit until spring next year to plant the lupins as I've left it too late for this year.