I totally fell in love with this game right away and was so eager to make new plants that I used or sold all of my basic seeds. Now I don't have enough money to buy better soil to support them. How do I get basic seeds so I can sell enough plants to buy the better soil?

I have tried self-pollinating but even the few plants I have are about to die.

I've already purchased the three basic seeds ......

HELP!!! I don't want to trash this game and start over but I think that is what I need to do.