Might not be as good sown later in the season (18/09/2015)
I sowed these a bit later in the season (early July), fearful of carrot fly (which luckily didn't affect my plot at all!), but the germination rate wasn't particularly high and only about 15 carrots grew out of the 50 I sowed. I wonder if they didn't like the hot weather, even though I did water them well? The carrots which did grow were very nice and I liked the look of them, so next year I'll try sowing them earlier.