all year carrots

No reason why not 

They are early carrots which means they grow quickly, so late summer sowings should be big enough to stand the winter.

I have had success with Autumn King at this time in the yera as well, even though they are big main crop ones.

What you won't get however, is carrots germinating outside all year round of course 

I add in another sowing mid summer as I like baby carrots 

Mind you, I have not had many to eat this year due to me not protecting them enough from carrot fly.

Investing in environmesh or using very fine new curtain to ensure they never ever have the chance to lay egges in the tops of your carrots is not a wasted effort if you want edible carrots.

Trust me (and all those others who have learned the hard way  )

I add slug bait as I sow --- so that under environmesh I have now grown perfick pak choi too