In the dark, dark days of winter, you are visited by the sirens of seed catalogs. Instead of tropical beaches, you see lush produce.
I used to use peat pots for the seedlings but now I use coconut coir pots. The Coir people make the case that peat is a relatively finite resource.
Both peat and coir providers tell you you can plant the pot in the ground. DON’T!
Every time I planted a transplant pot in the ground it does not dissolve fast enough. The roots of the plant are prevented from spreading and the adult plant suffers. At the end of the season, you pull up the plant and the pot is still there.