I come from potting substrate spread on the soil to individual cells to do like the rare market gardener I know doing his leek plants… But he’s not germinating them in the soil : he starts them in cells… But it’s good you ask : I think I’m gonna go using my local soil slightly enriched with some lombricompost, and without those inidvidual cells.
Those leeks seem good on schedule, or slightly too advanced. Planted in June
Mine don’t seem to germinate weel, (Yan’s ) anybody thinks it is too late for resowing ? or do you think I can give a try.
I believe it is simply too late by now. I may be wrong though!
just sowed a new series. we shall see.
just after resowing I transplanted some of my last leeks for seed production for next year. So I will have seeds that know this soil…
That’s great! At least you’ll have seeds for next year. I’ve tried to anticipate my sowings this year, doing ut “complètement à l’arrache”, but it germinated well, so when I get back from my tour 2 weeks ago I was amazed.
I’ve had failures with leeks over the past few years which I attributed to too late sowings but… It could be that I just don’t manage well the overall process!!! Anyhow it makes me want to simplify this… I think it’s usual but not “normal” or acceptable spending so much time in moving plants, so coddling them in a way, before eventually transpla’ting them, before eventually… Eating them!!!
Two things:
Here are my “weekyleaks and friends’ (yann and others)” right now: got maybe 1500… Which is waaaay too much:
And then… Look what! There are regrowths in the thing I used last year to produce my “weakyleaks” seeds:
amazing this re-growth … and well developped already.
You will have spring leeks which is not usual !!!
I’d love to get some of your regrowth leeks when you get seed eventually 
There are some well-known perennial leeks, some of them French cultivars. The most perennial ones make bulbils at the base - we call them “leek pearls” - that then set a new leek, turning the plant into a clumping onion.
I haven’t gone into perennial leek, but on my someday-maybe list I have these varieties to get and cross with each other:
Bleu de Solaise
Gandana
Kurrat
Monstreux de Carentan
Musselburgh
St. Victor
Tarée Irani
regarding the number of operations , last year we sowed about 500 seeds in the soil end of march. A couple of haircuts and some weeding during growth. And by june we had 250 alive and mostly at the proper size for transplanting them in their bed.
So really only one transplantation is needed. If you sow too densely, you may eliminate some to give space to the others.
