The remaining spares have languished in their little 3" pots ever since. The nutrients in the compost have long since been exhausted, and the plants were merely surviving, hardly growing at all. I should really have thrown them away, but for some indefinable reason I kept them. I suppose it is instinctive in a gardener to preserve plants, not destroy them.
Anyway, it suddenly dawned on me that these Leeks finally had a chance - the big pots in which my potatoes have been grown are becoming available one-by-one as I harvest the potatoes. I have also kept the compost from them. Put these things together, and you get this:
As you can see, I have planted the Leek seedlings very deep, so hopefully I will get a decent length of blanched plant.
I have done the same with a couple of spare "Tundra" cabbages:
So down at the bottom of the garden a new plantation of pots is springing up...