[samnorfolk]

Could i put my leek seeds straight into my raised bed in my small poly tunnel now??

[compostqueen]

I might sow them in the tunnel but plant them out into the garden or plot once they're big enough as they require no heat whatsoever.  They are the hardiest veg of all possibly so a PT would be far too warm.  Save space in your PT for the things that need heat, eg chillies, melons etc