[Starling]

I have 1m x 8m free for my brassicas.  I have grown cabbage, cauli, psb, calabrese sprouts and kale in modules and potted on.  I am getting really behind on planting out and want a bit of everything but I am not worried about massive yeilds this year. 
My plan is to mix up all the brassicas and plant out about 1/2m, will this be ok.

[aelf]

the sprouts, kale and calebrese grow tall and may shade out the shorter cabbages if you mix em up. I would put the cabbages in front (facing southwestish) with the taller ones behind. Spacing sounds a bit close to me for the taller plants too.

[Starling]

Thanks aelf

[Salmo]

I would grow them in blocks 4 plants with two rows going right down the plot 60 cm apart.
The rows down the plot will make it easy to hoe and to cover with net.
Each row would have

Kale
psb
calabrese
sprouts
caulis
cabbage
 

All spaced at 60cm .

The calabrese will be harvested before the psb and sprouts and can be taken out to give the psb and sprouts more space to grow.

[Starling]

Fantastic, thanks Salmo, I will try to get that done on Friday.