Picture posting is enabled for all :)
Just received my 'Earlybird' sweetcorn from Dobies which are their own F1 seed, :)
Best tips I have been given:use roottrainers or similar to give a long root run, and to sow three weeks before you want to plant out, so for me its mid May. Press the seeds into the soil and leave uncovered, I now get 100% germination in just a few days, and they grow so strongly at that time of year they catch up and surpass anything grown earlier.