The vine imagery is used enough in the Scripture to at least make us pay attention to it. All three major prophets use this language to speak of Israel and the idea of a vineyard, forests, trees, and the garden of Eden. Israel was a vine taken out of Egypt and planted in Canaan. It spread abroad and flourished, but it turned from the Lord and was brought to nothing. Reading through the few texts I've included below from Isaiah, Jeremiah, and Ezekiel will be helpful. This will give you more insight into how this language is used in the Scripture and how we might better understand it here in Psalm 80.