I don't know if confessing your sin to a plant is good. In my opinion the priority order goes to:
- Confessing your sins to a priest, a bishop, a monk, a cardinal, a patriarch or the Pope himself.
- Confessing your sins to a nun.
- Confessing your sins to a family member.
- Confessing your sins to God via a statue, a rosary or any item that has been blessed.
- Confessing your sins to God directly.