I have dahlia seedlings growing and I have leaves that grew in the middle of them I guess true leaves and I have some started already another set do I have to worry about pinching them I don't know about that? Thank you

You should give them a call, they are the best at helping people with issues.

I would contact Swan Island directly or any garden center

That's a question for this site, although you could probably Google it

Contact the company directly. This is a Google site and not the actual company.