Species pelargonium

Scarlet the seed packet that I have, comes from Fibrex, Mixed Species Pelargonium, is £5. a packet, approximately 7 seeds, which is fine but harvested 09/19 and sow by 09/21, which at that price is a bit limiting

I was a bit miffed when I got mine last year in March with 7 seeds...and a sow by date of need 2020.
But I had about 16 seeds and I had approx 14 germinate. Germination was quite quick for a few and then I kept the tray in the GH and they randomly germinated. I know the seed pack was expensive bu but I thought as the results were very good it was worth it? I covered the tray with a lid to keep it moist.