Posted: 10/04/2016 at 19:05
I'd say these are looking a little leggy Craig. I think cosmos have a tendancy for this, at the start they are long spindly plants.
It's not the end of the world, they will be ok. They would have benefitted from being planted deeper into the soil. Light levels indoors will be so different to natural light. They wont develop into good strong plants if you leave them inside.
They are hardy, so will do much better outside