Time to transplant onions

Crookneck is when the growing tip is still bent over towards the soil.

Ok, should i transplant them into small individual pots, or can i thin them to one to each module that they are already in?

Totty

Ok, will the onions be ok, 1 per module until the time at which they require planting out? i assume when they are all at the crookneck stage they can be put into the greenhouse? Sorry about all the questions but its the first time ive grown them from seed and dont want to be transplanting them if i dont need to. If i had sown them in a tray i can understand it, but if the 2 inch modules are big enough is it best to leave them?

Thanks,

Totty

ok thanks thats great. Can i do the same with leeks?
 When should i be putting the onions out into the greenhouse, out of the warmth of the windowsill?

Totty

Thanks, have seen that before, but, i have a small ish allotment, therefore dont grow loads of leeks and onions. And like the ease and convenience of sowing into modules as it surely reduces any chance of damaging roots etc. Trial and error i guess. Last question now, when is it ok to put the seedlings into the greenhouse after successful germination indoors?

when is it ok to put the seedlings into the greenhouse after successful germination indoors?

If you are talking about things like Tomatoes, Cucumbers, Melons, Aubergines then you need to be sure the temperature (minimum) will not fall below 10C - otherwise they will stall.

Onions and Leeks will be happy as far as I know (need hardening off if moving from warm windowsill to cold greenhouse though - put in greenhouse during the day, bring in at night, for a week or so.