[andyww2013]

Hi,

I have a few of those plastic storage boxes spare. Are they any good for starting seeds out.  The ones i have are about 250mm deep so would be ideal for starting my leeks.

I don't mind creating a few holes in it.

[Goosegirl]

They should be fine for seeds but you won't need to fill then to the top with soil. They will need holes drilled it the bottom to let any excess water out.