Our favourite variety around here. This summer I had a real bumper crop, for the first time. I had always been struggling with carrots in the garden.
The trick (around here) is to sow them in Autumn while the soil and weather is still fairly warm (the new carrot bed was soon this March), cover the seeds thinly with soil, water in well. Then cover with some hessian, so that the seeds don't dry out and/or birds can't munch on the seeds. Uncover when you have good germination. Then wait and enjoy! :)