Summer Cabbage - sow in pots outdoors or in?

ive got a few of each up an inch on the window sil,,then they go in cold green house befor i pot them in singles,,the bulk ill sow when it warms up

I put 2 or 3 seeds per module in trays on the window sills about this time of year and when they're about an inch or an inch and a half high, into individual pots in my outdoor plastic greenhouse.  When they start getting a bit bigger you don't have to worry about them being cold as they prefer the cold to being warm.  The real problem comes when planting out as you have to protect aaginst, slugs, catterpillars, and keep off the birds and butterflies.

Have fun! 

Welcome to the site 

Brassicas don't like too much heat so be careful.

Why don't you pop over to the Welcome forum and introduce yourself?  Always good to give newcomers a proper welcome 

No they don't like much heat!! The amount of seedlings I've lost either indoors in a cool utility or in a warm greenhouse!!