Clearly you people have driven me insane

[Celticdragonfly]

Oh dear ... On that center one, I'm supposed to thin to one plant. Don't know how soon to do that.

 

[Acre4Me]

Oh dear ... On that center one, I'm supposed to thin to one plant. Don't know how soon to do that.

Wait until there are some true leaves thin to the final plant. I usually will thin to 2 or 3 strong plants at this stage. Then, with true leaves I'll thin to the final most vigorous plant.

 

[rosemarythyme]

If I'm correctly remembering which Seedsheet went where, that should be cucumbers in the middle, lettuce blend down left, dwarf pea pods at the top, spinach down right.

And I think this one has spinach and lettuce blend sprouting, no sign of the tomato and carrots yet.

Looks like you're correct as far as what is where... I guess I shouldn't be surprised that they packed all the seeds into one tiny point instead of spreading them out more.

For thinning I agree with Acre4Me. Best way to do it is take a small pair of scissors and snip off excess sprouts near the bottom of the stem. I'd probably cut down to 3 at most at this point, then just watch the growth from there.

You may end up having to thin out most of the other plants too, like carrots realistically can't grow right on top of each other when you think about it.