Flax grows as a wild flower by the roadside in Lincs. If you're not growing it commercially, just scatter a few seed in some common dirt....It seems to flower best in poorish soil. Good luck.
That's interesting and they must look lovely growing naturally along the roadside Inglezinho. We have primroses among other not so well known plants/weeds growing on the hedges here. I will sow the seeds in our soil perhaps with a little sand and grit mixed in.
Verdun I was just about to sow some flax seeds this morning and I must have had an insight into your message even though I have only just read it, because I thought NO, I will wait until the Spring.!