Selling seedlings for resale

[snappybob]

I grow Tomato seedlings and sell directly to gardners. I was thinking of expanding my business and selling to local nurseries. The usually sell similar products to mine for $3 per plant. I was curoius as to what they might be paying for them. I'd like to get a fair price and don't have a clue where to start. The nurseries I'm thinking of are established family owned businesses (non franchise) if that makes any difference.