Starting Garlic in modules

Thinking of starting my garlic for the allotment in modules, any thoughts or suggestions. I know that they'll need to go out to get some frost once established, any idea roughly when. Should I plant them now? Will an unheated greenhouse be cold enough, or should I leave them out on shelving on the patio?

 

Why not plant them direct?

 

That's my question too.

They need to be outside, not in greenhouse, to get properly cold. That's what makes the clove "split" so it forms a multi-clove bulb next year.

Only reason to plant in 3" / 9cm pots, or perhaps modules, is if ground not yet free, or if it were to be waterlogged at planting time or somesuch (but that's more likely with Spring planted garlic varieties, rather than Autumn ones)

 

The main problem is space at the allotment, if I get them started off I can move them up there when space is available.

 

You could delay planting a bit longer, store them in the fridge rather than the freezer. Or plant in pots / modules and transplant later - outside will be fine for them.