This can be stated in active form. Alternate translation: "Yahweh has planted them" or "Yahweh takes care of them as if they were trees he had planted" (See: [[rc://en/ta/man/translate/figs-activepassive]] and [[rc://en/ta/man/translate/figs-metaphor]])
The psalmist speaks of righteous people as if they were healthy trees. Alternate translation: "they are growing well" or "they are very strong" (See: [[rc://en/ta/man/translate/figs-metaphor]])