"Organic" as chiefly of biological origin? Yeah. "Organic" as occurs in nature and beneficial for plants? Sure. "Organic" as compound containing carbon? Yes.

"Organic" as chiefly of biological origin? Yeah. "Organic" as occurs in nature and beneficial for plants? Sure. "Organic" as compound containing carbon? Yes. "Organic" as compound with at least one carbon-hydrogen bond? Nope. "Organic" as a compound with a significant number of carbon atoms? Nope.