How soon can auto's show preflower?

I have 2 10 day old auto's and I "think" I see preflowers on both.

My question is how soon can auto's show preflowers? Anyone know?

Still waiting on an experienced person to drop by and answer this question.

+Rep

My auto showed sex at day 21

Well. Maybe you or someone can please try to determine what this is...

Looks like a white hair to me, but the pictures aren't good enough to tell for sure. If so, that's rather uncommon - so congratulations.

Those are new leaves coming in at the nodes. An auto can show flower in as little as 14 days. I had an auto blue mystic that showed male right at 14 days.

I think so too. There goes my excitement. Man I can't wait to see it in full flower